TN State Board 8th Science half yearly exam question and answers - by QB Admin - Jan 01, 2024 - View & Read

8th Standard English Medium Science Subject T2 - Digital Painting Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is Tux Paint?

• 2)

  What is the use of Text Tool?

• 3)

  What is the shortcut key for Save option?

• 4)

  What is Tux Math?

• 5)

  What is the use of Ranger?

8th Standard English Medium Science Subject T3 - Sound Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Give an example to show that light travels faster than sound?

• 2)

  What is an ultrasonic sound?

• 3)

  Give two differences between music and noise.

• 4)

  Ruthvik and Ruha hear a gunshot 2 seconds after it is fired. How far away from the gun they are standing? (Speed of sound in air is equal to 330ms^-1)

• 5)

  What is the frequency of a mechanical wave that has a velocity of 25 ms^-1 and a wavelength of 12.5 m?

8th Standard English Medium Science Subject T3 - Sound Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is vibration?

• 2)

  To increase the loudness of sound by four times, how much should the amplitude of vibration be changed?

• 3)

  Give two differences between music and noise.

• 4)

  A sound wave travels 2000 m in 8 s. What is the velocity of the sound?

• 5)

  A wave with a frequency of 500 Hz is traveling at a speed of 200 ms^-1. What is the wavelength?

8th Standard English Medium Science Subject T3 - Magnetism Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define magnetic field?

• 2)

  What is artificial magnet? Give examples.

• 3)

  Distinguish between natural and artificial magnets?

• 4)

  Earth acts as a huge bar magnet. Why? Give reasons.

• 5)

  How can you identify non-magnetic materials? Give an example of a non-magnetic material.

8th Standard English Medium Science Subject T3 - Water Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define: Freezing point.

• 2)

  Define: Boiling point

• 3)

  Define: Specific heat capacity

• 4)

  Define:Latent heat of fusion.

• 5)

  Define: Potable water.

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define acid.

• 2)

  What are the similarities between acids and bases?

• 3)

  State the difference between acids and bases.

• 4)

  What is an indicator?

• 5)

  Write any four physical properties of base.

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is tissue culture?

• 2)

  What is an endangered species? Give two examples.

• 3)

  Write the advantages of the Red Data Book.

• 4)

  Mention four main reasons for the conservation of forests.

• 5)

  What do you understand by the term bio magnification

8th Standard English Medium Science Subject T1 - Measurement Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Name some common systems of measurement.

• 2)

  Define - ampere.

• 3)

  What do you mean by luminous Intensity?

• 4)

  What are the differences between Plane angle and solid angle?

• 5)

  Your friend was absent to school yesterday. You are enquiring about his absence. He told that he had fever and it was measured to be 100^oC. Is it possible to have 100^oC fever? If he is wrong, try to make him understand.

8th Standard English Medium Science Subject T1 - Measurement Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is measurement?

• 2)

  Define- Temperature.

• 3)

  What is electric current?

• 4)

  Define - mole.

• 5)

  What are errors?

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define friction. Give two examples of the utility of friction in day to day life.

• 2)

  How do sailors protect their ship during a heavy storm?

• 3)

  Why is a ball bearing used in a cycle hub?

• 4)

  Is there any possibility of making a special device to measure the magnitude of friction directly?

• 5)

  A bubble rises from the bottom of a pond to its surface by increasing its radius by 3 times its value when it was at the bottom. Calculate the depth of the pond. (Hint: Pressure depends on the depth of the pond. Volume is inversely related to pressure.) [Science Olympiad]

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Mention any three ways of minimising friction.

• 2)

  State Pascal’s law and mention its applications.

• 3)

  Why is a ball bearing used in a cycle hub?

• 4)

  Why is it not advisable to take a fountain pen while travelling in an aeroplane?

• 5)

  Vidhya feels that Mercury is costly. So, instead of mercury can we use water as a barometric liquid? Answer to Vidhya and explain, the difficulty of constructing a water barometer.

8th Standard English Medium Science Subject T1 - Light Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define focal length?

• 2)

  Give two applications of a concave and convex mirror.

• 3)

  State the laws of reflection.

• 4)

  If two plane mirrors are inclined to each other at an angle of 45°, find the number of images formed.

• 5)

  State the Snell’s law of refraction

8th Standard English Medium Science Subject T1 - Matter Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Tabulate four points of difference between metals and non-metals.

• 2)

  Why are utensils made up of aluminium and brass?

• 3)

  Name the elements for following symbols.
  a) Na b) W c) Ba d) Al e) U

• 4)

  Mention any four compounds and their uses.

• 5)

  Mention the uses for the following compounds.
  a) Baking soda b) Bleaching powder c) quick lime

8th Standard English Medium Science Subject T1 - Matter Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Can you store pickle in an aluminium utensil? Give reason.

• 2)

  Define tensile strength.

• 3)

  Define a Alchemy.

• 4)

  Name six common non-metals and write their symbols.

• 5)

  Name the metals that are used in jewellery.

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Explain the role of yeast in making cakes and buns in a bakery?

• 2)

  Burning of fossil fuels is responsible for global warming. Justify the statement.

• 3)

  Discuss acid rain occurs due to emission of smoke from vehicles and industries?

• 4)

  Is rusting good for Iron materials? Explain.

• 5)

  Do all the fruits and vegetables undergo browning? Explain.

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write the four types of bacteria, based on their shape.

• 2)

  What are antibiotics?

• 3)

  What are pathogens?

• 4)

  How diseases causing micro organisms enter into human beings?

• 5)

  Why micro organisms are essential for agriculture?

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write a short note on natural system of classification

• 2)

  Write any three economic importance of algae.

• 3)

  Write the differences between algae and fungi.

• 4)

  How many classes are there in Bryophytes? What are they?

• 5)

  Write any four characters of pteridophytes.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define Eukaryotic cell?

• 2)

  State different types of epithelial cells?

• 3)

  Why the human eye is compared with camera?

• 4)

  Which organ and organ system help to maintain homeostasis?

• 5)

  How are they preparing pickles? What are the causes involved in that?

8th Standard English Medium Science Subject T2 - Electricity Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Explain three ways of charge transfer.

• 2)

  What is electroscope? Explain how it works?

• 3)

  Explain series and parallel circuit.

• 4)

  How lightning takes place?

• 5)

  What is electroplating? Explain how it is done.

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is global warming?

• 2)

  Give a few examples for extinct species.

• 3)

  Name two endangered animals.

• 4)

  What is ICUN?

• 5)

  Animals are affected by Deforestation. How?

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is known as extinct species?

• 2)

  Name two endangered animals.

• 3)

  Is it possible to find Dinosaurs today? Why?

• 4)

  Animals are affected by Deforestation. How?

• 5)

  Why did the numbers of Tiger and Blackbuck decrease?

8th Standard English Medium Science Subject T2 - Movements Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Name the different types of joints? Give one example for each type.

• 2)

  Write about the human axial skeleton, giving suitable labelled diagram.

• 3)

  Discuss various types of movements seen in living organisms.

• 4)

  What is a streamlined body? How does it help in the movement of animals that fly or swim in water?

• 5)

  Write a short note on different types of muscles.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Draw the structure of human eye and label its parts.

• 2)

  Explain Osmosis with an example.

• 3)

  Differentiate between inhalation and exhalation.

• 4)

  Lists out the different types of metabolism with an example.

• 5)

   Explain the mechanism of breathing.

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Draw the outline of Bentham and Hooker's system of classification.

• 2)

  Write any five differences between monocot and dicot plants.

• 3)

  Write differences between Gymnosperm and Angiosperm.

• 4)

  Write the economic importance of Gymnosperms.

• 5)

  Write the names of medicinal plants and explain their uses.

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write a short note on bacteria and its structure.

• 2)

  How micro organisms are useful in the field of medicine?

• 3)

  Write a short note on common human diseases caused by micro organisms.

• 4)

  How can we improve the beneficial bacterial count in human beings?

• 5)

  Write a short note on Probiotics.

8th Standard English Medium Science Subject T1 - Light Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Explain the images formed by a concave mirror?

• 2)

  What is reflection? Write short notes on regular and irregular reflection?

• 3)

  Explain the working of a periscope.

• 4)

  What is dispersion? Explain in detail.

• 5)

  Speed of light in air is 3 × 10⁸ m s^–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  “Friction is a necessary evil”- explain.

• 2)

  Give the different types of friction and explain each with an example.

• 3)

  Describe an experiment to prove that friction depends on the nature of a surface.

• 4)

  Explain how friction can be minimised.

• 5)

  Describe an experiment to prove that the pressure in a liquid increases with depth.

8th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  SI unit of temperature is __________

• 2)

  The value of the atmospheric pressure at sea level is

• 3)

  The spherical mirror with a reflecting surface curved inward is called

• 4)

  The Pictorial symbol for water given by the alchemists was

• 5)

  ______ metal undergoes rusting.

8th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Fuse is

• 2)

  Which of the following is known as azote?

• 3)

  Which of the following statements made by Dalton has not undergone any change?

• 4)

  Which one of the following categories of vertebrae are correctly numbered.

• 5)

  During menstruation, the progesterone level is ___________

8th Standard English Medium Science Subject Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is the ‘Lower Fixed Point’ of the Fahrenheit scale?

• 2)

  Give two examples to verify that a force changes the shape of a body.

• 3)

  The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

• 4)

  Write the constituent elements and their symbols for the following compounds
  a) Carbon monoxide
  b) Washing soda

• 5)

  Mention the various conditions required for a chemical reaction to occur

8th Standard English Medium Science Subject Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define specific heat capacity

• 2)

  What is electroplating?

• 3)

  What is global warming?

• 4)

  Define the term ions or radicals

• 5)

  Define Muscle

8th Standard English Medium Science Subject Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Name some common systems of measurement.

• 2)

  How do sailors protect their ship during a heavy storm?

• 3)

  Define focal length?

• 4)

  Tabulate four points of difference between metals and non-metals.

• 5)

  Burning of fossil fuels is responsible for global warming. Justify the statement.

8th Standard English Medium Science Subject Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write a note on thermostat.

• 2)

  How lightning takes place?

• 3)

  What are the effects of acid rain? How can we prevent them?

• 4)

  Write the skeleton equation for the following word equation and then balance them.
  a) Carbon + Oxygen → Carbon dioxide
  b) Phosphorus + Chlorine → Phosphorus pentachloride.
  c) Sulphur + Oxygen → Sulphur dioxide
  d) Magnesium + hydrogen → Magnesium + Hydrogen chloride chloride

• 5)

  How is the skeleton of a bird well-suited for flying?

8th Standard English Medium Science Subject Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write a short note on different types of clocks.

• 2)

  Give the different types of friction and explain each with an example.

• 3)

  What is reflection? Write short notes on regular and irregular reflection?

• 4)

  Explain how food items are spoiled by chemical reactions?

• 5)

  How micro organisms are useful in the field of medicine?

8th Standard English Medium Science Subject Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  How can we improve the beneficial bacterial count in human beings?

• 2)

  Write the economic importance of Gymnosperms.

• 3)

   Explain the mechanism of breathing.

• 4)

  How do astronauts breathe when they go beyond earth’s atmosphere?

• 5)

  How can we prove that the electrons carry negative charge?

8th Standard English Medium Science Subject T1 - Measurement Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Electric current is a ______quantity

• 2)

  Amount of substance is

• 3)

  Which one of the following devices is used to measure electric current

• 4)

  Closeness of two or more measured values is called as ______

• 5)

  Which of the following statements  is wrong?

8th Standard English Medium Science Subject T1 - Measurement Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Which one the following systems of unit is the British System of unit?

• 2)

  SI unit of temperature is __________

• 3)

  Luminous intensity is the intensity of ________

• 4)

  SI unit stands for

• 5)

  Quantities other than base quantities are called as

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  If we apply a force against the direction of motion of a body, then the body will

• 2)

  Unit of pressure is

• 3)

  The value of the atmospheric pressure at sea level is

• 4)

  Pascal’s law is used in

• 5)

  The unit of viscosity is

8th Standard English Medium Science Subject T1 - Light Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The spherical mirror with a reflecting surface curved inward is called

• 2)

  The spherical mirror used as a rear view mirror in the vehicle is

• 3)

  The distance from the pole to the focus is called

• 4)

  If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?

• 5)

  The refractive index of water is

8th Standard English Medium Science Subject T1 - Light Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Which of the following has curved reflecting surface?

• 2)

  The centre of a sphere of which the reflecting surface of a spherical mirror is a part is called

• 3)

  The imaginary line passing through the centre of curvature and pole of a spherical mirror is called

• 4)

  Focal length is equal to half of the

• 5)

  If the image and object distance is same, then the object is placed at

8th Standard English Medium Science Subject T1 - Matter Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The liquid metal used in thermometers is

• 2)

  Which one of the element name not derived from planet?

• 3)

  A form of non-metal which has high ductility is

• 4)

  Pencil lead contains

8th Standard English Medium Science Subject T1 - Matter Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The Pictorial symbol for water given by the alchemists was

• 2)

  Symbol of Mercury is

• 3)

  Which one of metal possess low tensile strength?

• 4)

  The non-metal which conduct current is

• 5)

  Molecule ______ D. smallest unit of a substance

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The burning of matchstick is an example for chemical reaction based on______

• 2)

  The pigment responsible for browning of apples is______.

• 3)

  Limestone contains ______ mainly.

• 4)

  In Haber’s process of producing ammonia ______ is used as a catalyst.

• 5)

  ______ is responsible for Global warming.

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Burning of paper is a______ change.

• 2)

  ______ metal undergoes rusting.

• 3)

  Brine is a concentrated solution of ______.

• 4)

  Which of the following factor induces electrolysis?

• 5)

  Dissolved gases like sulphur dioxide, nitrogen oxides in rain water causes______

8th Standard English Medium Science Subject T3 - Water Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Water changes to ice at

• 2)

  Solubility of carbon dioxide in water is high when the

• 3)

  The gas collected at the cathode on electrolysis of water is

• 4)

  Which of the following is a water pollutant?

• 5)

  Permanent hardness of water is due to the presence of __________

8th Standard English Medium Science Subject T3 - Visual Communication Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The Keyboard shortcut is used to copy the selected text

• 2)

  The Keyboard shortcut is used to cut the selected text

• 3)

  If the ruler is not displayed in the screen, __________ option is clicked.

• 4)

  How many types of page orientation are there in Libre office Writer?

• 5)

  The menu used to save the document is

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Micro organisms are measured in ______.

• 2)

  _______ shows both living and nonliving characteristics.

• 3)

  ______ is a prokaryotic micro organisms.

• 4)

  Based on shape, the bacteria are classified into _______ types.

• 5)

  The plant body of algae is called as ______.

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  An example for colonial form of algae is

• 2)

  The edible mushroom is _________

• 3)

  The first vascular cryptogams in land plants are ________.

• 4)

  The well-developed sporophytic plant body is seen in

• 5)

  Binominal Nomenclature was first introduced in the year of

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Solanum trilobatum is the binomial name of Thoothuvalai. Here the word ‘Solanum’ refers to

• 2)

  Floridian starch is a reserve food material of

• 3)

  Soil erosion is prevented by____________plants.

• 4)

  The well-developed sporophytic plant body is seen in

• 5)

  Penicillin is an antibiotic, which is extracted from

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  __________ is tough and thick white sheath that protect the inner parts of the eye.

• 2)

  Maintenance of constant internal environment of the body is known as _________

• 3)

  In the absence of oxygen, glucose is broken down in to ________.

• 4)

  The process of air passing in and out the lungs is called ___________.

• 5)

  The erythrocyte is placed in _________ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.

8th Standard English Medium Science Subject T1 - Introduction to the Information Age Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Who is the father of computer?

• 2)

  Which one of the following is an output device?

• 3)

  Which one of the following is an input device?

• 4)

  Pen drive is _____device.

• 5)

  Fifth generation computer has ___________ Intelligence.

8th Standard English Medium Science Subject T2 - Heat Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  If you apply some heat energy to a substance, which of the following can take place in it?

• 2)

  Which of the following substances will absorb more heat energy?

• 3)

  If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

• 4)

  The process of converting a liquid into a solid is called_________.

• 5)

  Conduction is the heat transfer which takes place in a____________.

8th Standard English Medium Science Subject T2 - Electricity Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  When an ebonite rod is rubbed with fur, the charge acquired by the fur is

• 2)

  The electrification of two different bodies on rubbing is because of the transfer of

• 3)

  Which of the following a simple circuit must have?

• 4)

  An electroscope has been charged by induction with the help of charged glassrod. The charge on the electroscope is

• 5)

  Fuse is

8th Standard English Medium Science Subject T2 - Air Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Which of the following is true about oxygen?

• 2)

  Aerated water contains

• 3)

  Solvay process is a method to manufacture

• 4)

  Carbon dioxide with water changes

• 5)

  Which of the following is known as azote?

8th Standard English Medium Science Subject T2 - Atomic Structure Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The same proportion of carbon and oxygen in the carbon dioxide obtained from different sources proves the law of __________

• 2)

  Cathode rays are made up of

• 3)

  In water, hydrogen and oxygen are combined in the ratio of _______by mass.

• 4)

  Which of the following statements made by Dalton has not undergone any change?

• 5)

  In all atoms of an element

8th Standard English Medium Science Subject T2 - Movements Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Which of the following parts of our body help us in movement?
  (i) Bones (ii) Skin (iii) Muscles (iv) Organs Choose the correct answer from the options below.

• 2)

  __________ joints are immovable.

• 3)

  Why do underwater divers wear fin-like flippers on their feet ?

• 4)

  External ear (pinna )is supported by

• 5)

  Cockroach moves with the help of its

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The period at which an organism attains sexual maturity is called _____________

• 2)

  Adam’s apple is the growth of the ________

• 3)

  The sperm is produced by ____________

• 4)

  Androgen production is regulated by ___________

• 5)

  ___________ intake needs to be increased to prevent osteoporosis in later life.

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Adolescence is the period of life between _____________ years of age.

• 2)

  During puberty, the region below the waist become wider in _____________

• 3)

  Many adolescent boys and girls get pimples on face, due to the secretions of _________ gland.

• 4)

  ___________ are the chemical substances, secreted by endocrine glands.

• 5)

  During menstruation, the progesterone level is ___________

8th Standard English Medium Science Subject T2 - Digital Painting Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Tux paint software is used to ________.

• 2)

  Which tool bar is used for drawing and editing controls in tux paint software?

• 3)

  What is the short cut key for undo option?

• 4)

  Tux Math software helps in learning the ________

• 5)

  In Tux Math, space cadet option is used for_________.

8th Standard English Medium Science Subject T3 - Sound Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Sound waves travel very fast in

• 2)

  The amplitude of the sound wave decides its

• 3)

  Find the odd one out.

• 4)

  Noise is produced by

• 5)

  The range of audible frequency for the human ear is

8th Standard English Medium Science Subject T3 - Magnetism Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  A magnet attracts _______.

• 2)

  One of the following is an example of a permanent magnet.

• 3)

  The south pole of a bar magnet and the north pole of a U-shaped magnet will __________.

• 4)

  The shape of the Earth’s magnetic field resembles that of an imaginary __________.

• 5)

  MRI stands for __________.

8th Standard English Medium Science Subject T3 - Universe and Space Science Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Mangalyaan was sent to ________

• 2)

  Chandrayaan - 1 was launched on

• 3)

  _____ is called as Red planet.

• 4)

  Which of the following is the working principle of Rockets?

• 5)

  ________ was the first manned mission of NASA to go to the moon.

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Acids are ________ in taste.

• 2)

  In acidic solutions blue litmus changes into ______ colour.

• 3)

  Sodium hydroxide is a ________

• 4)

  Magnesium hydroxides are used for treating_______

• 5)

  We brush our teeth with tooth paste because it is __________ in nature.

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Aqueous solutions of _________ conduct electricity.

• 2)

  The base is a substance that gives _____ on dissolving in water.

• 3)

  Red ant sting contains __________

• 4)

  Acid mixed with base forms ________

• 5)

  In basic solution turmeric indicator paper changes from yellow to __________

8th Standard English Medium Science Subject T3 - Chemistry in Everyday Life Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The chemical mixed with LPG that helps in the detection of its leakage is __________

• 2)

  Which is known as syn gas?

• 3)

  The unit of calorific value of fuel is __________

• 4)

  __________ is the coal of superior quality.

• 5)

  The main component of natural gas is __________

8th Standard English Medium Science Subject T3 - Crop Production and Management Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The process of placing seeds in the soil is called

• 2)

  Organism that control insects and pests of plant crops is

• 3)

  The method in which water flows over the soil surface and allow it to infiltrate is

• 4)

  Effective microorganism preparation is not used in

• 5)

  Which of the following is not present in Panchagavya?

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The plants found in a particular area are known as ________

• 2)

  Deforestation means ______

• 3)

  The Red Data Book gives a list of _________

• 4)

  Insitu conservation is________

• 5)

  Wildlife Protection Act was implemented in ________

8th Standard English Medium Science Subject T1 - Measurement Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  How many times will the ‘minute hand’ rotate in one hour?

• 2)

  Convert 80°C into kelvin

• 3)

  If 2 coulomb of charge flows through a circuit for 10 seconds, calculate the current.

• 4)

  Convert \(\frac { \pi }{ 4 } \) into degree.

• 5)

  Round off the number 1.868 to two decimal places.

8th Standard English Medium Science Subject T1 - Measurement Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  How many base quantities are included in SI system?

• 2)

  What is the ‘Lower Fixed Point’ of the Fahrenheit scale?

• 3)

  What is the value of Avogadro’s number?

• 4)

  Mention the types of clocks based on their display.

• 5)

  How many hours are there in a minute?

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Taking out paste from a tooth paste tube is an example to highlight which physical property?

• 2)

  How does the friction arise between the surfaces of two bodies in relative motion?

• 3)

  Define one atmosphere.

• 4)

  How does surface tension help a plant?

• 5)

  Calculate the pressure exerted by the foot of an elephant using the following data. Average weight of an elephant is 4000 N. Surface area of the sole of its foot is 0.1m².

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  In a hydraulic lift, the surface area of the input piston is 10 cm². The surface area of the output piston is 3000 cm². A 100 N force applied to the input piston raises the output piston. Calculate the force required to raise the output piston.

• 2)

  Give two examples to verify that a force tends to change the static condition of a body.

• 3)

  How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?

• 4)

  Name two instruments, which help to measure the pressure of a fluid.

• 5)

  Why are heavy bags provided with broad straps?

8th Standard English Medium Science Subject T1 - Light Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

• 2)

  Focal length of a spherical mirror is 7 cm. What is its radius of curvature?

• 3)

  If two plane mirrors are inclined to each other at an angle of 90°, find the number of images formed.

• 4)

  Speed of light in air is 3 × 108 ms^-1 and the speed of light in a medium is 2 × 10⁸ ms^-1. Find the refractive index of the medium with respect to air.

• 5)

  Refractive index of water is 4/3 and the refractive index of glass is 3/2. Find the refractive index of glass with respect to the refractive index of water.

8th Standard English Medium Science Subject T1 - Matter Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write the constituent elements and their symbols for the following compounds
  a) Carbon monoxide
  b) Washing soda

• 2)

  Name two soft metals that can be cut with a knife.

• 3)

  Why are bells made of metals?

• 4)

  Give two examples for metalloids.

• 5)

  Write three properties of metalloids.

8th Standard English Medium Science Subject T1 - Matter Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is ductility?

• 2)

  Write the symbols for these elements
  a) Oxygen b) Gold
  c) calcium d) cadmium e) Iron

• 3)

  Which non-metal is essential for our life and all living beings inhale it during breathing?

• 4)

  What does a chemical symbol represent?

• 5)

  Mention any three compounds that exist in liquid state.

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Mention the various conditions required for a chemical reaction to occur

• 2)

  What happens when an iron nail is placed in copper sulphate solution?

• 3)

  What is Tarnishing? Give an example.

• 4)

  On heating, calcium carbonate gives calcium oxide and oxygen. Is it exothermic reaction or endothermic reaction?

• 5)

  Why photosynthesis is a chemical reaction?

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define a chemical reaction.

• 2)

  Define catalysis

• 3)

  What is pollution?

• 4)

  What happens to the brine during electrolysis?

• 5)

  What is the role of a catalyst in a chemical reaction?

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Write the name of any nitrogen fixing bacteria. 

• 2)

  Name the bacteria used in the production of vinegar.

• 3)

  Write the names of any three protozoans.

• 4)

  Who discovered penicillin?

• 5)

  Which diseases can be prevented by vaccination?

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Define Thallus.

• 2)

  What is mean by Binomial Nomenclature? give example.

• 3)

  Write any two characters of dicotyledons.

• 4)

  Seeds of gymnosperm plants are naked. Why?

• 5)

  Write any two economic importance of fungi.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is cell differentiation?

• 2)

  Mention the function of ‘Alveoli’?

• 3)

  Differentiate between Osmoconformers and Osmoregulators?

• 4)

  Dr. Usha is a pulmonologist (Doctor for respiratory diseases). One day, a school student named Arjun, met her with respiratory problems. After diagnosis, the doctor advised him to go playground daily and play football or basketball. She also advised to do pranayamam in the morning.
  a) Why did the doctor advised him to go to the playground?
  b) What is the use of pranayamam?

• 5)

  Shylesh is a school going kid studying standard VIII. He is crazy about playing video games in mobile phones. After couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to consult an eye doctor.
  i) How does excessive usage of mobile phone affect our eyes?
  ii) What are the values shown by the teacher?

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  State different types of tissues.

• 2)

  Name the processes by which air enters and comes out of our lungs?

• 3)

  Differentiate between Osmoconformers and Osmoregulators?

• 4)

  Define Metabolism?

• 5)

  Explain why are you not able to breathe normally when you are in closed and crowded places?

8th Standard English Medium Science Subject T2 - Heat Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  Name three types of heat transfer

• 2)

  What is conduction?

• 3)

  Write a note on convection.

• 4)

  Define specific heat capacity

• 5)

  Define one calorie

8th Standard English Medium Science Subject T2 - Electricity Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  How charges are produced by friction?

• 2)

  What is earthing?

• 3)

  What is electric circuit?

• 4)

  What is electroplating?

• 5)

  Give some uses of electroplating.

8th Standard English Medium Science Subject T2 - Air Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What are the sources of oxygen?.

• 2)

  Mention the physical properties of oxygen.

• 3)

  List out the uses of nitrogen

• 4)

  What is global warming?

• 5)

  What is dry ice? What are its uses?

8th Standard English Medium Science Subject T2 - Atomic Structure Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  State the law of conservation of mass.

• 2)

  State the law of constant proportions.

• 3)

  Write the properties of anode rays.

• 4)

  Define the term ions or radicals

• 5)

  What is a chemical equation?

8th Standard English Medium Science Subject T2 - Movements Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  What is skeleton?

• 2)

  What is cranium?

• 3)

  What is ligament?

• 4)

  Define Muscle

• 5)

  Differentiate tendons and ligament

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

• 1)

  List out the changes which occur during puberty.

• 2)

  What is secondary sex characteristics?

• 3)

  What is fertilization?

• 4)

  Explain the process of pregnancy.

• 5)

  How is adolescence differ from childhood?

8th Standard English Medium Science Subject Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  How can we improve the beneficial bacterial count in human beings?

• 2)

  Write the economic importance of Gymnosperms.

• 3)

   Explain the mechanism of breathing.

• 4)

  How do astronauts breathe when they go beyond earth’s atmosphere?

• 5)

  How can we prove that the electrons carry negative charge?

8th Standard English Medium Science Subject Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write a short note on different types of clocks.

• 2)

  Give the different types of friction and explain each with an example.

• 3)

  What is reflection? Write short notes on regular and irregular reflection?

• 4)

  Explain how food items are spoiled by chemical reactions?

• 5)

  How micro organisms are useful in the field of medicine?

8th Standard English Medium Science Subject Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write a note on thermostat.

• 2)

  How lightning takes place?

• 3)

  What are the effects of acid rain? How can we prevent them?

• 4)

  Write the skeleton equation for the following word equation and then balance them.
  a) Carbon + Oxygen → Carbon dioxide
  b) Phosphorus + Chlorine → Phosphorus pentachloride.
  c) Sulphur + Oxygen → Sulphur dioxide
  d) Magnesium + hydrogen → Magnesium + Hydrogen chloride chloride

• 5)

  How is the skeleton of a bird well-suited for flying?

8th Standard English Medium Science Subject Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Name some common systems of measurement.

• 2)

  How do sailors protect their ship during a heavy storm?

• 3)

  Define focal length?

• 4)

  Tabulate four points of difference between metals and non-metals.

• 5)

  Burning of fossil fuels is responsible for global warming. Justify the statement.

8th Standard English Medium Science Subject Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define specific heat capacity

• 2)

  What is electroplating?

• 3)

  What is global warming?

• 4)

  Define the term ions or radicals

• 5)

  Define Muscle

8th Standard English Medium Science Subject Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is the ‘Lower Fixed Point’ of the Fahrenheit scale?

• 2)

  Give two examples to verify that a force changes the shape of a body.

• 3)

  The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

• 4)

  Write the constituent elements and their symbols for the following compounds
  a) Carbon monoxide
  b) Washing soda

• 5)

  Mention the various conditions required for a chemical reaction to occur

8th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Fuse is

• 2)

  Which of the following is known as azote?

• 3)

  Which of the following statements made by Dalton has not undergone any change?

• 4)

  Which one of the following categories of vertebrae are correctly numbered.

• 5)

  During menstruation, the progesterone level is ___________

8th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  SI unit of temperature is __________

• 2)

  The value of the atmospheric pressure at sea level is

• 3)

  The spherical mirror with a reflecting surface curved inward is called

• 4)

  The Pictorial symbol for water given by the alchemists was

• 5)

  ______ metal undergoes rusting.

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  “Friction is a necessary evil”- explain.

• 2)

  Give the different types of friction and explain each with an example.

• 3)

  Describe an experiment to prove that friction depends on the nature of a surface.

• 4)

  Explain how friction can be minimised.

• 5)

  Describe an experiment to prove that the pressure in a liquid increases with depth.

8th Standard English Medium Science Subject T1 - Light Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Explain the images formed by a concave mirror?

• 2)

  What is reflection? Write short notes on regular and irregular reflection?

• 3)

  Explain the working of a periscope.

• 4)

  What is dispersion? Explain in detail.

• 5)

  Speed of light in air is 3 × 10⁸ m s^–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write a short note on bacteria and its structure.

• 2)

  How micro organisms are useful in the field of medicine?

• 3)

  Write a short note on common human diseases caused by micro organisms.

• 4)

  How can we improve the beneficial bacterial count in human beings?

• 5)

  Write a short note on Probiotics.

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Draw the outline of Bentham and Hooker's system of classification.

• 2)

  Write any five differences between monocot and dicot plants.

• 3)

  Write differences between Gymnosperm and Angiosperm.

• 4)

  Write the economic importance of Gymnosperms.

• 5)

  Write the names of medicinal plants and explain their uses.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Draw the structure of human eye and label its parts.

• 2)

  Explain Osmosis with an example.

• 3)

  Differentiate between inhalation and exhalation.

• 4)

  Lists out the different types of metabolism with an example.

• 5)

   Explain the mechanism of breathing.

8th Standard English Medium Science Subject T2 - Movements Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Name the different types of joints? Give one example for each type.

• 2)

  Write about the human axial skeleton, giving suitable labelled diagram.

• 3)

  Discuss various types of movements seen in living organisms.

• 4)

  What is a streamlined body? How does it help in the movement of animals that fly or swim in water?

• 5)

  Write a short note on different types of muscles.

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is known as extinct species?

• 2)

  Name two endangered animals.

• 3)

  Is it possible to find Dinosaurs today? Why?

• 4)

  Animals are affected by Deforestation. How?

• 5)

  Why did the numbers of Tiger and Blackbuck decrease?

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is global warming?

• 2)

  Give a few examples for extinct species.

• 3)

  Name two endangered animals.

• 4)

  What is ICUN?

• 5)

  Animals are affected by Deforestation. How?

8th Standard English Medium Science Subject T2 - Electricity Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Explain three ways of charge transfer.

• 2)

  What is electroscope? Explain how it works?

• 3)

  Explain series and parallel circuit.

• 4)

  How lightning takes place?

• 5)

  What is electroplating? Explain how it is done.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define Eukaryotic cell?

• 2)

  State different types of epithelial cells?

• 3)

  Why the human eye is compared with camera?

• 4)

  Which organ and organ system help to maintain homeostasis?

• 5)

  How are they preparing pickles? What are the causes involved in that?

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write a short note on natural system of classification

• 2)

  Write any three economic importance of algae.

• 3)

  Write the differences between algae and fungi.

• 4)

  How many classes are there in Bryophytes? What are they?

• 5)

  Write any four characters of pteridophytes.

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write the four types of bacteria, based on their shape.

• 2)

  What are antibiotics?

• 3)

  What are pathogens?

• 4)

  How diseases causing micro organisms enter into human beings?

• 5)

  Why micro organisms are essential for agriculture?

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Explain the role of yeast in making cakes and buns in a bakery?

• 2)

  Burning of fossil fuels is responsible for global warming. Justify the statement.

• 3)

  Discuss acid rain occurs due to emission of smoke from vehicles and industries?

• 4)

  Is rusting good for Iron materials? Explain.

• 5)

  Do all the fruits and vegetables undergo browning? Explain.

8th Standard English Medium Science Subject T1 - Matter Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Can you store pickle in an aluminium utensil? Give reason.

• 2)

  Define tensile strength.

• 3)

  Define a Alchemy.

• 4)

  Name six common non-metals and write their symbols.

• 5)

  Name the metals that are used in jewellery.

8th Standard English Medium Science Subject T1 - Matter Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Tabulate four points of difference between metals and non-metals.

• 2)

  Why are utensils made up of aluminium and brass?

• 3)

  Name the elements for following symbols.
  a) Na b) W c) Ba d) Al e) U

• 4)

  Mention any four compounds and their uses.

• 5)

  Mention the uses for the following compounds.
  a) Baking soda b) Bleaching powder c) quick lime

8th Standard English Medium Science Subject T1 - Light Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define focal length?

• 2)

  Give two applications of a concave and convex mirror.

• 3)

  State the laws of reflection.

• 4)

  If two plane mirrors are inclined to each other at an angle of 45°, find the number of images formed.

• 5)

  State the Snell’s law of refraction

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Mention any three ways of minimising friction.

• 2)

  State Pascal’s law and mention its applications.

• 3)

  Why is a ball bearing used in a cycle hub?

• 4)

  Why is it not advisable to take a fountain pen while travelling in an aeroplane?

• 5)

  Vidhya feels that Mercury is costly. So, instead of mercury can we use water as a barometric liquid? Answer to Vidhya and explain, the difficulty of constructing a water barometer.

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define friction. Give two examples of the utility of friction in day to day life.

• 2)

  How do sailors protect their ship during a heavy storm?

• 3)

  Why is a ball bearing used in a cycle hub?

• 4)

  Is there any possibility of making a special device to measure the magnitude of friction directly?

• 5)

  A bubble rises from the bottom of a pond to its surface by increasing its radius by 3 times its value when it was at the bottom. Calculate the depth of the pond. (Hint: Pressure depends on the depth of the pond. Volume is inversely related to pressure.) [Science Olympiad]

8th Standard English Medium Science Subject T1 - Measurement Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is measurement?

• 2)

  Define- Temperature.

• 3)

  What is electric current?

• 4)

  Define - mole.

• 5)

  What are errors?

8th Standard English Medium Science Subject T1 - Measurement Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Name some common systems of measurement.

• 2)

  Define - ampere.

• 3)

  What do you mean by luminous Intensity?

• 4)

  What are the differences between Plane angle and solid angle?

• 5)

  Your friend was absent to school yesterday. You are enquiring about his absence. He told that he had fever and it was measured to be 100^oC. Is it possible to have 100^oC fever? If he is wrong, try to make him understand.

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is tissue culture?

• 2)

  What is an endangered species? Give two examples.

• 3)

  Write the advantages of the Red Data Book.

• 4)

  Mention four main reasons for the conservation of forests.

• 5)

  What do you understand by the term bio magnification

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define acid.

• 2)

  What are the similarities between acids and bases?

• 3)

  State the difference between acids and bases.

• 4)

  What is an indicator?

• 5)

  Write any four physical properties of base.

8th Standard English Medium Science Subject T3 - Water Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define: Freezing point.

• 2)

  Define: Boiling point

• 3)

  Define: Specific heat capacity

• 4)

  Define:Latent heat of fusion.

• 5)

  Define: Potable water.

8th Standard English Medium Science Subject T3 - Magnetism Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define magnetic field?

• 2)

  What is artificial magnet? Give examples.

• 3)

  Distinguish between natural and artificial magnets?

• 4)

  Earth acts as a huge bar magnet. Why? Give reasons.

• 5)

  How can you identify non-magnetic materials? Give an example of a non-magnetic material.

8th Standard English Medium Science Subject T3 - Sound Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is vibration?

• 2)

  To increase the loudness of sound by four times, how much should the amplitude of vibration be changed?

• 3)

  Give two differences between music and noise.

• 4)

  A sound wave travels 2000 m in 8 s. What is the velocity of the sound?

• 5)

  A wave with a frequency of 500 Hz is traveling at a speed of 200 ms^-1. What is the wavelength?

8th Standard English Medium Science Subject T3 - Sound Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Give an example to show that light travels faster than sound?

• 2)

  What is an ultrasonic sound?

• 3)

  Give two differences between music and noise.

• 4)

  Ruthvik and Ruha hear a gunshot 2 seconds after it is fired. How far away from the gun they are standing? (Speed of sound in air is equal to 330ms^-1)

• 5)

  What is the frequency of a mechanical wave that has a velocity of 25 ms^-1 and a wavelength of 12.5 m?

8th Standard English Medium Science Subject T2 - Digital Painting Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is Tux Paint?

• 2)

  What is the use of Text Tool?

• 3)

  What is the shortcut key for Save option?

• 4)

  What is Tux Math?

• 5)

  What is the use of Ranger?

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  List out the changes which occur during puberty.

• 2)

  What is secondary sex characteristics?

• 3)

  What is fertilization?

• 4)

  Explain the process of pregnancy.

• 5)

  How is adolescence differ from childhood?

8th Standard English Medium Science Subject T2 - Movements Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is skeleton?

• 2)

  What is cranium?

• 3)

  What is ligament?

• 4)

  Define Muscle

• 5)

  Differentiate tendons and ligament

8th Standard English Medium Science Subject T2 - Atomic Structure Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  State the law of conservation of mass.

• 2)

  State the law of constant proportions.

• 3)

  Write the properties of anode rays.

• 4)

  Define the term ions or radicals

• 5)

  What is a chemical equation?

8th Standard English Medium Science Subject T2 - Air Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What are the sources of oxygen?.

• 2)

  Mention the physical properties of oxygen.

• 3)

  List out the uses of nitrogen

• 4)

  What is global warming?

• 5)

  What is dry ice? What are its uses?

8th Standard English Medium Science Subject T2 - Electricity Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  How charges are produced by friction?

• 2)

  What is earthing?

• 3)

  What is electric circuit?

• 4)

  What is electroplating?

• 5)

  Give some uses of electroplating.

8th Standard English Medium Science Subject T2 - Heat Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Name three types of heat transfer

• 2)

  What is conduction?

• 3)

  Write a note on convection.

• 4)

  Define specific heat capacity

• 5)

  Define one calorie

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  State different types of tissues.

• 2)

  Name the processes by which air enters and comes out of our lungs?

• 3)

  Differentiate between Osmoconformers and Osmoregulators?

• 4)

  Define Metabolism?

• 5)

  Explain why are you not able to breathe normally when you are in closed and crowded places?

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is cell differentiation?

• 2)

  Mention the function of ‘Alveoli’?

• 3)

  Differentiate between Osmoconformers and Osmoregulators?

• 4)

  Dr. Usha is a pulmonologist (Doctor for respiratory diseases). One day, a school student named Arjun, met her with respiratory problems. After diagnosis, the doctor advised him to go playground daily and play football or basketball. She also advised to do pranayamam in the morning.
  a) Why did the doctor advised him to go to the playground?
  b) What is the use of pranayamam?

• 5)

  Shylesh is a school going kid studying standard VIII. He is crazy about playing video games in mobile phones. After couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to consult an eye doctor.
  i) How does excessive usage of mobile phone affect our eyes?
  ii) What are the values shown by the teacher?

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define Thallus.

• 2)

  What is mean by Binomial Nomenclature? give example.

• 3)

  Write any two characters of dicotyledons.

• 4)

  Seeds of gymnosperm plants are naked. Why?

• 5)

  Write any two economic importance of fungi.

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write the name of any nitrogen fixing bacteria. 

• 2)

  Name the bacteria used in the production of vinegar.

• 3)

  Write the names of any three protozoans.

• 4)

  Who discovered penicillin?

• 5)

  Which diseases can be prevented by vaccination?

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Define a chemical reaction.

• 2)

  Define catalysis

• 3)

  What is pollution?

• 4)

  What happens to the brine during electrolysis?

• 5)

  What is the role of a catalyst in a chemical reaction?

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Mention the various conditions required for a chemical reaction to occur

• 2)

  What happens when an iron nail is placed in copper sulphate solution?

• 3)

  What is Tarnishing? Give an example.

• 4)

  On heating, calcium carbonate gives calcium oxide and oxygen. Is it exothermic reaction or endothermic reaction?

• 5)

  Why photosynthesis is a chemical reaction?

8th Standard English Medium Science Subject T1 - Matter Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  What is ductility?

• 2)

  Write the symbols for these elements
  a) Oxygen b) Gold
  c) calcium d) cadmium e) Iron

• 3)

  Which non-metal is essential for our life and all living beings inhale it during breathing?

• 4)

  What does a chemical symbol represent?

• 5)

  Mention any three compounds that exist in liquid state.

8th Standard English Medium Science Subject T1 - Matter Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Write the constituent elements and their symbols for the following compounds
  a) Carbon monoxide
  b) Washing soda

• 2)

  Name two soft metals that can be cut with a knife.

• 3)

  Why are bells made of metals?

• 4)

  Give two examples for metalloids.

• 5)

  Write three properties of metalloids.

8th Standard English Medium Science Subject T1 - Light Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

• 2)

  Focal length of a spherical mirror is 7 cm. What is its radius of curvature?

• 3)

  If two plane mirrors are inclined to each other at an angle of 90°, find the number of images formed.

• 4)

  Speed of light in air is 3 × 108 ms^-1 and the speed of light in a medium is 2 × 10⁸ ms^-1. Find the refractive index of the medium with respect to air.

• 5)

  Refractive index of water is 4/3 and the refractive index of glass is 3/2. Find the refractive index of glass with respect to the refractive index of water.

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  In a hydraulic lift, the surface area of the input piston is 10 cm². The surface area of the output piston is 3000 cm². A 100 N force applied to the input piston raises the output piston. Calculate the force required to raise the output piston.

• 2)

  Give two examples to verify that a force tends to change the static condition of a body.

• 3)

  How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?

• 4)

  Name two instruments, which help to measure the pressure of a fluid.

• 5)

  Why are heavy bags provided with broad straps?

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  Taking out paste from a tooth paste tube is an example to highlight which physical property?

• 2)

  How does the friction arise between the surfaces of two bodies in relative motion?

• 3)

  Define one atmosphere.

• 4)

  How does surface tension help a plant?

• 5)

  Calculate the pressure exerted by the foot of an elephant using the following data. Average weight of an elephant is 4000 N. Surface area of the sole of its foot is 0.1m².

8th Standard English Medium Science Subject T1 - Measurement Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  How many base quantities are included in SI system?

• 2)

  What is the ‘Lower Fixed Point’ of the Fahrenheit scale?

• 3)

  What is the value of Avogadro’s number?

• 4)

  Mention the types of clocks based on their display.

• 5)

  How many hours are there in a minute?

8th Standard English Medium Science Subject T1 - Measurement Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 16, 2021 - View & Read

• 1)

  How many times will the ‘minute hand’ rotate in one hour?

• 2)

  Convert 80°C into kelvin

• 3)

  If 2 coulomb of charge flows through a circuit for 10 seconds, calculate the current.

• 4)

  Convert \(\frac { \pi }{ 4 } \) into degree.

• 5)

  Round off the number 1.868 to two decimal places.

8th Standard English Medium Science Subject T3 - Conservation of Plants and Animals Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The plants found in a particular area are known as ________

• 2)

  Deforestation means ______

• 3)

  The Red Data Book gives a list of _________

• 4)

  Insitu conservation is________

• 5)

  Wildlife Protection Act was implemented in ________

8th Standard English Medium Science Subject T3 - Crop Production and Management Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The process of placing seeds in the soil is called

• 2)

  Organism that control insects and pests of plant crops is

• 3)

  The method in which water flows over the soil surface and allow it to infiltrate is

• 4)

  Effective microorganism preparation is not used in

• 5)

  Which of the following is not present in Panchagavya?

8th Standard English Medium Science Subject T3 - Chemistry in Everyday Life Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The chemical mixed with LPG that helps in the detection of its leakage is __________

• 2)

  Which is known as syn gas?

• 3)

  The unit of calorific value of fuel is __________

• 4)

  __________ is the coal of superior quality.

• 5)

  The main component of natural gas is __________

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Aqueous solutions of _________ conduct electricity.

• 2)

  The base is a substance that gives _____ on dissolving in water.

• 3)

  Red ant sting contains __________

• 4)

  Acid mixed with base forms ________

• 5)

  In basic solution turmeric indicator paper changes from yellow to __________

8th Standard English Medium Science Subject T3 - Acids and Bases Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Acids are ________ in taste.

• 2)

  In acidic solutions blue litmus changes into ______ colour.

• 3)

  Sodium hydroxide is a ________

• 4)

  Magnesium hydroxides are used for treating_______

• 5)

  We brush our teeth with tooth paste because it is __________ in nature.

8th Standard English Medium Science Subject T3 - Universe and Space Science Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Mangalyaan was sent to ________

• 2)

  Chandrayaan - 1 was launched on

• 3)

  _____ is called as Red planet.

• 4)

  Which of the following is the working principle of Rockets?

• 5)

  ________ was the first manned mission of NASA to go to the moon.

8th Standard English Medium Science Subject T3 - Magnetism Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  A magnet attracts _______.

• 2)

  One of the following is an example of a permanent magnet.

• 3)

  The south pole of a bar magnet and the north pole of a U-shaped magnet will __________.

• 4)

  The shape of the Earth’s magnetic field resembles that of an imaginary __________.

• 5)

  MRI stands for __________.

8th Standard English Medium Science Subject T3 - Sound Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Sound waves travel very fast in

• 2)

  The amplitude of the sound wave decides its

• 3)

  Find the odd one out.

• 4)

  Noise is produced by

• 5)

  The range of audible frequency for the human ear is

8th Standard English Medium Science Subject T2 - Digital Painting Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Tux paint software is used to ________.

• 2)

  Which tool bar is used for drawing and editing controls in tux paint software?

• 3)

  What is the short cut key for undo option?

• 4)

  Tux Math software helps in learning the ________

• 5)

  In Tux Math, space cadet option is used for_________.

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Adolescence is the period of life between _____________ years of age.

• 2)

  During puberty, the region below the waist become wider in _____________

• 3)

  Many adolescent boys and girls get pimples on face, due to the secretions of _________ gland.

• 4)

  ___________ are the chemical substances, secreted by endocrine glands.

• 5)

  During menstruation, the progesterone level is ___________

8th Standard English Medium Science Subject T2 - Reaching the age of Adolescence Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The period at which an organism attains sexual maturity is called _____________

• 2)

  Adam’s apple is the growth of the ________

• 3)

  The sperm is produced by ____________

• 4)

  Androgen production is regulated by ___________

• 5)

  ___________ intake needs to be increased to prevent osteoporosis in later life.

8th Standard English Medium Science Subject T2 - Movements Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Which of the following parts of our body help us in movement?
  (i) Bones (ii) Skin (iii) Muscles (iv) Organs Choose the correct answer from the options below.

• 2)

  __________ joints are immovable.

• 3)

  Why do underwater divers wear fin-like flippers on their feet ?

• 4)

  External ear (pinna )is supported by

• 5)

  Cockroach moves with the help of its

8th Standard English Medium Science Subject T2 - Atomic Structure Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The same proportion of carbon and oxygen in the carbon dioxide obtained from different sources proves the law of __________

• 2)

  Cathode rays are made up of

• 3)

  In water, hydrogen and oxygen are combined in the ratio of _______by mass.

• 4)

  Which of the following statements made by Dalton has not undergone any change?

• 5)

  In all atoms of an element

8th Standard English Medium Science Subject T2 - Air Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Which of the following is true about oxygen?

• 2)

  Aerated water contains

• 3)

  Solvay process is a method to manufacture

• 4)

  Carbon dioxide with water changes

• 5)

  Which of the following is known as azote?

8th Standard English Medium Science Subject T2 - Electricity Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  When an ebonite rod is rubbed with fur, the charge acquired by the fur is

• 2)

  The electrification of two different bodies on rubbing is because of the transfer of

• 3)

  Which of the following a simple circuit must have?

• 4)

  An electroscope has been charged by induction with the help of charged glassrod. The charge on the electroscope is

• 5)

  Fuse is

8th Standard English Medium Science Subject T2 - Heat Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  If you apply some heat energy to a substance, which of the following can take place in it?

• 2)

  Which of the following substances will absorb more heat energy?

• 3)

  If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

• 4)

  The process of converting a liquid into a solid is called_________.

• 5)

  Conduction is the heat transfer which takes place in a____________.

8th Standard English Medium Science Subject T1 - Introduction to the Information Age Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Who is the father of computer?

• 2)

  Which one of the following is an output device?

• 3)

  Which one of the following is an input device?

• 4)

  Pen drive is _____device.

• 5)

  Fifth generation computer has ___________ Intelligence.

8th Standard English Medium Science Subject T1 - Organisation of Life Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  __________ is tough and thick white sheath that protect the inner parts of the eye.

• 2)

  Maintenance of constant internal environment of the body is known as _________

• 3)

  In the absence of oxygen, glucose is broken down in to ________.

• 4)

  The process of air passing in and out the lungs is called ___________.

• 5)

  The erythrocyte is placed in _________ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Solanum trilobatum is the binomial name of Thoothuvalai. Here the word ‘Solanum’ refers to

• 2)

  Floridian starch is a reserve food material of

• 3)

  Soil erosion is prevented by____________plants.

• 4)

  The well-developed sporophytic plant body is seen in

• 5)

  Penicillin is an antibiotic, which is extracted from

8th Standard English Medium Science Subject T1 - Plant Kingdom Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  An example for colonial form of algae is

• 2)

  The edible mushroom is _________

• 3)

  The first vascular cryptogams in land plants are ________.

• 4)

  The well-developed sporophytic plant body is seen in

• 5)

  Binominal Nomenclature was first introduced in the year of

8th Standard English Medium Science Subject T1 - Micro Organisms Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Micro organisms are measured in ______.

• 2)

  _______ shows both living and nonliving characteristics.

• 3)

  ______ is a prokaryotic micro organisms.

• 4)

  Based on shape, the bacteria are classified into _______ types.

• 5)

  The plant body of algae is called as ______.

8th Standard English Medium Science Subject T3 - Visual Communication Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The Keyboard shortcut is used to copy the selected text

• 2)

  The Keyboard shortcut is used to cut the selected text

• 3)

  If the ruler is not displayed in the screen, __________ option is clicked.

• 4)

  How many types of page orientation are there in Libre office Writer?

• 5)

  The menu used to save the document is

8th Standard English Medium Science Subject T3 - Water Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Water changes to ice at

• 2)

  Solubility of carbon dioxide in water is high when the

• 3)

  The gas collected at the cathode on electrolysis of water is

• 4)

  Which of the following is a water pollutant?

• 5)

  Permanent hardness of water is due to the presence of __________

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Burning of paper is a______ change.

• 2)

  ______ metal undergoes rusting.

• 3)

  Brine is a concentrated solution of ______.

• 4)

  Which of the following factor induces electrolysis?

• 5)

  Dissolved gases like sulphur dioxide, nitrogen oxides in rain water causes______

8th Standard English Medium Science Subject T1 - Changes Around Us Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The burning of matchstick is an example for chemical reaction based on______

• 2)

  The pigment responsible for browning of apples is______.

• 3)

  Limestone contains ______ mainly.

• 4)

  In Haber’s process of producing ammonia ______ is used as a catalyst.

• 5)

  ______ is responsible for Global warming.

8th Standard English Medium Science Subject T1 - Matter Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The Pictorial symbol for water given by the alchemists was

• 2)

  Symbol of Mercury is

• 3)

  Which one of metal possess low tensile strength?

• 4)

  The non-metal which conduct current is

• 5)

  Molecule ______ D. smallest unit of a substance

8th Standard English Medium Science Subject T1 - Matter Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The liquid metal used in thermometers is

• 2)

  Which one of the element name not derived from planet?

• 3)

  A form of non-metal which has high ductility is

• 4)

  Pencil lead contains

8th Standard English Medium Science Subject T1 - Light Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Which of the following has curved reflecting surface?

• 2)

  The centre of a sphere of which the reflecting surface of a spherical mirror is a part is called

• 3)

  The imaginary line passing through the centre of curvature and pole of a spherical mirror is called

• 4)

  Focal length is equal to half of the

• 5)

  If the image and object distance is same, then the object is placed at

8th Standard English Medium Science Subject T1 - Light Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  The spherical mirror with a reflecting surface curved inward is called

• 2)

  The spherical mirror used as a rear view mirror in the vehicle is

• 3)

  The distance from the pole to the focus is called

• 4)

  If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?

• 5)

  The refractive index of water is

8th Standard English Medium Science Subject T1 - Forces and Pressure Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  If we apply a force against the direction of motion of a body, then the body will

• 2)

  Unit of pressure is

• 3)

  The value of the atmospheric pressure at sea level is

• 4)

  Pascal’s law is used in

• 5)

  The unit of viscosity is

8th Standard English Medium Science Subject T1 - Measurement Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Which one the following systems of unit is the British System of unit?

• 2)

  SI unit of temperature is __________

• 3)

  Luminous intensity is the intensity of ________

• 4)

  SI unit stands for

• 5)

  Quantities other than base quantities are called as

8th Standard English Medium Science Subject T1 - Measurement Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

• 1)

  Electric current is a ______quantity

• 2)

  Amount of substance is

• 3)

  Which one of the following devices is used to measure electric current

• 4)

  Closeness of two or more measured values is called as ______

• 5)

  Which of the following statements  is wrong?

8th Standard Science Reduced Syllabus 2020-21 - by QB Admin - May 19, 2021 - View & Read

8th Standard Science Text Book - by QB Admin - Apr 27, 2021 - View & Read