8th Standard Science Study material & Free Online Practice Tests - View Model Question Papers with Solutions for Class 8 Session 2019 - 2020
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Science Question Papers

8th Standard Science Conservation of Plants and Animals English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Crop Production and Management English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Chemistry in Everyday Life English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Acids and Bases English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Acids are ________ in taste.

  • 2)

    Aqueous solutions of _________ conduct electricity.

  • 3)

    In acidic solutions blue litmus changes into ______ colour.

  • 4)

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

  • 5)

    Sodium hydroxide is a ____________

8th Standard Science Water English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Universe and Space Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Mangalyaan was sent to ________

  • 2)

    Chandrayaan - 1 was launched on

  • 3)

    ________ is called as Red planet.

  • 4)

    Cryogenic fuels are stored at

  • 5)

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

8th Standard Science Magnetism English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

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

  • 4)

    MRI stands for __________.

  • 5)

    A compass is used for __________

8th Standard Science Visual Communication English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Sound English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Sound waves travel very fast in

  • 2)

    The amplitude of the sound wave decides its

  • 3)

    What kind of musical instrument is a sitar?

  • 4)

    Find the odd one out.

  • 5)

    The range of audible frequency for the human ear is

8th Standard Science Digital Painting English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Reaching the age of Adolescence English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

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

  • 4)

    Adam’s apple is the growth of the ________

  • 5)

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

8th Standard Science Movements English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Which one of the following organisms lack muscles and skeleton for movement?

  • 2)

    __________ joints are immovable.

  • 3)

    External ear (pinna )is supported by

  • 4)

    Cockroach moves with the help of its

  • 5)

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

8th Standard Science Atomic Structure English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Air English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Electricity English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Heat English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Heat is a form of ________.

  • 2)

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

  • 3)

    Which of the following substances will absorb more heat energy?

  • 4)

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

  • 5)

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

8th Standard Science Introduction to the Information Age English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Organisation of Life English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

    ______________ cells are specialised cells that can be transformed into any kind of cells.

  • 4)

    Osmosis is the movement of water molecules from a ___________.

  • 5)

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

8th Standard Science Plant Kingdom English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    _________ is an example for colonial form of algae.

  • 2)

    Floridian starch is a reserve food material of _______

  • 3)

    The edible mushroom is _________

  • 4)

    The first vascular cryptogams in land plants are ________.

  • 5)

    Binominal Nomenclature was first introduced in the year of _______

8th Standard Science Micro Organisms English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Changes Around Us English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Matter English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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)

    The property which allows metals to be hammered into their sheets is ___________

  • 5)

    Pencil lead contains

8th Standard Science Light English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - 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 Science Forces and Pressure English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Pressure exerted by a liquid is increased by

  • 2)

    Unit of pressure is

  • 3)

    The value of the atmospheric pressure at sea level is

  • 4)

    Pascal’s law is used in

  • 5)

    Which of the following liquids has more viscosity?

8th Standard Science Measurement English Medium Free Online Test 1 Mark Questions with Answer key 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Electric current belongs to ______quantities

  • 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 about approximation is wrong?

8th Standard Science Visual Communication English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Conservation of Plants and Animals English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Movements English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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)

    External ear (pinna )is supported by

  • 4)

    Cockroach moves with the help of its

  • 5)

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

8th Standard Science Atomic Structure English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Air English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Electricity English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Heat English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Heat is a form of ________.

  • 2)

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

  • 3)

    Which of the following substances will absorb more heat energy?

  • 4)

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

  • 5)

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

8th Standard Science Introduction to the Information Age English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Reaching the age of Adolescence English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

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

  • 4)

    Adam’s apple is the growth of the ________

  • 5)

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

8th Standard Science Digital Painting English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Sound English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Sound waves travel very fast in

  • 2)

    Which of the following are the characteristics of vibrations?
    i. Frequency
    ii. Time period
    iii. Pitch
    iv. Loudness

  • 3)

    The amplitude of the sound wave decides its

  • 4)

    What kind of musical instrument is a sitar?

  • 5)

    Find the odd one out.

8th Standard Science Magnetism English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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)

    MRI stands for __________.

  • 5)

    A compass is used for __________

8th Standard Science Universe and Space Science English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Which of the following is a celestial body?

  • 2)

    Mangalyaan was sent to ________

  • 3)

    Chandrayaan - 1 was launched on

  • 4)

    ________ is called as Red planet.

  • 5)

    Which of the following is the working principle of Rockets?

8th Standard Science Water English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Acids and Bases English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Acids are ________ in taste.

  • 2)

    Aqueous solutions of _________ conduct electricity.

  • 3)

    In acidic solutions blue litmus changes into ______ colour.

  • 4)

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

  • 5)

    Sodium hydroxide is a ____________

8th Standard Science Chemistry in Everyday Life English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Crop Production and Management English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Organisation of Life English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

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

  • 4)

    Osmosis is the movement of water molecules from a ___________.

  • 5)

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

8th Standard Science Plant Kingdom English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Micro Organisms English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Forces and Pressure English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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)

    Pascal’s law is used in

  • 4)

    Which of the following liquids has more viscosity?

  • 5)

    The unit of viscosity is

8th Standard Science Changes Around Us English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - 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 Science Matter English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Matter is composed of

  • 2)

    The Pictorial symbol for water given by the alchemists was

  • 3)

    Symbol of Mercury is

  • 4)

    Which one of metal possess low tensile strength?

  • 5)

    The non-metal which conduct current is

8th Standard Science Light English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Mirrors having a curved reflecting surface are called as

  • 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 Science Measurement English Medium Free Online Test 1 Mark Questions 2020-2021 - by Chitra - Rajapalayam - View & Read

  • 1)

    Which one the following system of units 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 Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 3 - by Chitra - Rajapalayam - View & Read

  • 1)

    Amount of substance is

  • 2)

    The unit of viscosity is

  • 3)

    Which one of metal possess low tensile strength?

  • 4)

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

  • 5)

    Binominal Nomenclature was first introduced in the year of _______

8th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 2 - by Chitra - Rajapalayam - View & Read

  • 1)

    Amount of substance is

  • 2)

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

  • 3)

    Which one of metal possess low tensile strength?

  • 4)

    Limestone contains ______ mainly.

  • 5)

    Floridian starch is a reserve food material of _______

8th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 1 - by Chitra - Rajapalayam - View & Read

  • 1)

    _______ can be used as memory or storage element in the computers.

  • 2)

    The unit of charge is ______

  • 3)

    Rain drops are spherical in nature because of _________

  • 4)

    An imaginary line perpendicular to the reflecting surface is called

  • 5)

    Compound obtained from living sources such as plants and animals are called

8th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - Three - by Chitra - Rajapalayam - View & Read

  • 1)

    _______ can be used as memory or storage element in the computers.

  • 2)

    The unit of charge is ______

  • 3)

    The unit for surface tension is _________

  • 4)

    In which mirror the following statement is labeled?

  • 5)

    The smallest particle of an element is__________

8th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - Two - by Chitra - Rajapalayam - View & Read

  • 1)

    Electric current (I) = ____________

  • 2)

    If the area of contact is greater, then the ______ will be greater.

  • 3)

    When the angle of inclination decreases the number of images formed _________

  • 4)

    The compound used for the sterilisation of drinking water is________

  • 5)

    Enzymes and yeasts are called

8th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - One - by Chitra - Rajapalayam - View & Read

  • 1)

    The unit of charge is ______

  • 2)

    The unit for surface tension is _________

  • 3)

    An imaginary line perpendicular to the reflecting surface is called

  • 4)

    Which of the following element is named after a scientist?

  • 5)

    The brown colour of a cut apple is due to

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 3 - by Chitra - Rajapalayam - View & Read

  • 1)

    __________ is the measure of the perceived power of light.

  • 2)

    Rain drops are spherical in nature because of _________

  • 3)

    If the area of contact is greater, then the ______ will be greater.

  • 4)

    In which mirror the following statement is labeled?

  • 5)

    Which of the following does not possess metallic lustre?

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 2 - by Chitra - Rajapalayam - View & Read

  • 1)

    Amount of substance is

  • 2)

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

  • 3)

    The non-metal which conduct current is

  • 4)

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

  • 5)

    The edible mushroom is _________

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 1 - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

    Find the odd one out.

  • 4)

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

  • 5)

    Mangalyaan was sent to ________

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Three - by Chitra - Rajapalayam - View & Read

  • 1)

    Pascal’s law is used in

  • 2)

    The refractive index of water is

  • 3)

    ______ metal undergoes rusting.

  • 4)

    _________ is an example for colonial form of algae.

  • 5)

    Osmosis is the movement of water molecules from a ___________.

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Two - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

    What kind of musical instrument is a sitar?

  • 3)

    A magnet attracts __________.

  • 4)

    Chandrayaan - 1 was launched on

  • 5)

    The gas collected at the cathode on electrolysis of water is

8th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - One - by Chitra - Rajapalayam - View & Read

  • 1)

    Luminous intensity is the intensity of

  • 2)

    The value of the atmospheric pressure at sea level is

  • 3)

    The distance from the pole to the focus is called

  • 4)

    Symbol of Mercury is

  • 5)

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

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 10 - by Chitra - Rajapalayam - View & Read

  • 1)

    SI unit of temperature is

  • 2)

    Electric current (I) = ____________

  • 3)

    The distance from the pole to the focus is called

  • 4)

    Mirrors which magnify the object placed close to them.

  • 5)

    The property which allows metals to be hammered into their sheets is ___________

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 9 - by Chitra - Rajapalayam - View & Read

  • 1)

    __________ is the measure of the perceived power of light.

  • 2)

    Pressure exerted by a liquid is increased by

  • 3)

    The distance from the pole to the focus is called

  • 4)

    An imaginary line perpendicular to the reflecting surface is called

  • 5)

    A form of non-metal which has high ductility is

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 8 - by Chitra - Rajapalayam - View & Read

  • 1)

    Luminous intensity is the intensity of

  • 2)

    The unit of charge is ______

  • 3)

    Pascal’s law is used in

  • 4)

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

  • 5)

    When the angle of inclination decreases the number of images formed _________

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 7 - by Chitra - Rajapalayam - View & Read

  • 1)

    SI unit of temperature is

  • 2)

    The unit for surface tension 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)

    Which of the following element is named after a scientist?

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 6 - by Chitra - Rajapalayam - View & Read

  • 1)

    Closeness of two or more measured values is called as

  • 2)

    Normal temperature of the human body is between

  • 3)

    Which of the following liquids has more viscosity?

  • 4)

    Focal length is equal to half of the

  • 5)

    Mirrors which magnify the object placed close to them.

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 5 - by Chitra - Rajapalayam - View & Read

  • 1)

    SI unit of temperature is

  • 2)

    If the area of contact is greater, then the ______ will be greater.

  • 3)

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

  • 4)

    The property which allows metals to be hammered into their sheets is ___________

  • 5)

    Which of the following element is named after a scientist?

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 4 - by Chitra - Rajapalayam - View & Read

  • 1)

    Electric current (I) = ____________

  • 2)

    When the angle of inclination decreases the number of images formed _________

  • 3)

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

  • 4)

    Rusting of iron is a _________ change.

  • 5)

    Floridian starch is a reserve food material of _______

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 3 - by Chitra - Rajapalayam - View & Read

  • 1)

    _______ can be used as memory or storage element in the computers.

  • 2)

    Rain drops are spherical in nature because of _________

  • 3)

    An imaginary line perpendicular to the reflecting surface is called

  • 4)

    Which of the following element is named after a scientist?

  • 5)

    Enzymes and yeasts are called

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 2 - by Chitra - Rajapalayam - View & Read

  • 1)

    SI unit of temperature is

  • 2)

    _______ can be used as memory or storage element in the computers.

  • 3)

    Unit of pressure is

  • 4)

    Focal length is equal to half of the

  • 5)

    An imaginary line perpendicular to the reflecting surface is called

8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 1 - by Chitra - Rajapalayam - View & Read

  • 1)

    Amount of substance is

  • 2)

    Pascal’s law is used in

  • 3)

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

  • 4)

    Mirrors which magnify the object placed close to them.

  • 5)

    Which one of the element name not derived from planet?

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Ten - by Chitra - Rajapalayam - View & Read

  • 1)

    Electric current (I) = ____________

  • 2)

    An imaginary line perpendicular to the reflecting surface is called

  • 3)

    The chemical reactions carried out by the passage of electricity is called.

  • 4)

    _______ shows both living and nonliving characteristics.

  • 5)

    Binominal Nomenclature was first introduced in the year of _______

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Nine - by Chitra - Rajapalayam - View & Read

  • 1)

    Quantities other than base quantities are called as

  • 2)

    Which of the following liquids has more viscosity?

  • 3)

    Focal length is equal to half of the

  • 4)

    Which one of metal possess low tensile strength?

  • 5)

    Limestone contains ______ mainly.

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Eight - by Chitra - Rajapalayam - View & Read

  • 1)

    __________ is the measure of the perceived power of light.

  • 2)

    __________ form the perfect image of an object

  • 3)

    Compound obtained from living sources such as plants and animals are called

  • 4)

    _________is a ball-shaped bacteria.

  • 5)

    _____ is the giant kelp

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Seven - by Chitra - Rajapalayam - View & Read

  • 1)

    Normal temperature of the human body is between

  • 2)

    Rain drops are spherical in nature because of _________

  • 3)

    Mirrors which magnify the object placed close to them.

  • 4)

    Which of the following element is named after a scientist?

  • 5)

    Decomposition of limestone is an example for chemical reaction based on __________

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Six - by Chitra - Rajapalayam - View & Read

  • 1)

    Which one the following system of units is the British System of unit?

  • 2)

    Unit of pressure is

  • 3)

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

  • 4)

    Symbol of Mercury is

  • 5)

    Brine is a concentrated solution of ______.

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Five - by Chitra - Rajapalayam - View & Read

  • 1)

    Quantities other than base quantities are called as

  • 2)

    Electric current (I) = ____________

  • 3)

    Which of the following liquids has more viscosity?

  • 4)

    The unit for surface tension is _________

  • 5)

    Focal length is equal to half of the

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Four - by Chitra - Rajapalayam - View & Read

  • 1)

    SI unit of temperature is

  • 2)

    The unit of charge is ______

  • 3)

    The unit of viscosity is

  • 4)

    Focal length is equal to half of the

  • 5)

    In which mirror the following statement is labeled?

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Three - by Chitra - Rajapalayam - View & Read

  • 1)

    Closeness of two or more measured values is called as

  • 2)

    Which of the following liquids has more viscosity?

  • 3)

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

  • 4)

    An imaginary line perpendicular to the reflecting surface is called

  • 5)

    The property which allows metals to be hammered into their sheets is ___________

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Two - by Chitra - Rajapalayam - View & Read

  • 1)

    Luminous intensity is the intensity of

  • 2)

    Rain drops are spherical in nature because of _________

  • 3)

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

  • 4)

    When the angle of inclination decreases the number of images formed _________

  • 5)

    Which one of metal possess low tensile strength?

8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - One - by Chitra - Rajapalayam - View & Read

  • 1)

    Electric current belongs to ______quantities

  • 2)

    Pressure exerted by a liquid is increased by

  • 3)

    The distance from the pole to the focus is called

  • 4)

    A form of non-metal which has high ductility is

  • 5)

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

8th Standard Science Important Questions - by Chitra - Rajapalayam - View & Read

  • 1)

    Luminous intensity is the intensity of

  • 2)

    Quantities other than base quantities are called as

  • 3)

    Normal temperature of the human body is between

  • 4)

    _______ can be used as memory or storage element in the computers.

  • 5)

    Electric current (I) = ____________

8th Science - Introduction to the Information Age Model Question Paper - by Chitra - Rajapalayam - 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)

    First generation computer has_________

8th Science - Organisation of Life Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    _________make up organs

  • 2)

    _________are called as building blocks of life

  • 3)

    _______tissues for conduction of nerve impalses

  • 4)

    _____is a thin transparent membrane that is spread across the sclera

  • 5)

    _________million alveoli located at the end of branchial tubes

8th Science - Plant Kingdom Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    The estimated number of species on the earth is _________ million

  • 2)

    ______ is the earliest system of classification in plants.

  • 3)

    _____ is the giant kelp

  • 4)

    ______ is used as a food for domestic animals

  • 5)

    Cercospora personata causes _________

8th Science - Micro Organisms Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    _________is a ball-shaped bacteria.

  • 2)

    __________is an example for Lophotrichous

  • 3)

    Yeast reproduces by __________

  • 4)

    Plasmodium belongs to _________ type of protozoan.

  • 5)

    __________ is an acid - loving bacteria

8th Science - Changes Around Us Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    Rusting of iron is a _________ change.

  • 2)

    Decomposition of limestone is an example for chemical reaction based on __________

  • 3)

    The chemical reactions carried out by the passage of electricity is called.

  • 4)

    Enzymes and yeasts are called

  • 5)

    The brown colour of a cut apple is due to

8th Science - Matter Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    A form of non-metal which has high ductility is

  • 2)

    Which one of metal possess low tensile strength?

  • 3)

    Molecule ______ D. smallest unit of a substance

  • 4)

    Compound obtained from living sources such as plants and animals are called

  • 5)

    The compound used for the sterilisation of drinking water is________

8th Science - Light Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    The spherical mirror with a reflecting surface curved inward is called

  • 2)

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

  • 3)

    Mirrors which magnify the object placed close to them.

  • 4)

    In which mirror the following statement is labeled?

  • 5)

    When the angle of inclination decreases the number of images formed _________

8th Science - Forces and Pressure Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

    The unit of viscosity is

  • 3)

    Rain drops are spherical in nature because of _________

  • 4)

    The unit for surface tension is _________

  • 5)

    If the area of contact is greater, then the ______ will be greater.

8th Science - Measurement Model Question Paper - by Chitra - Rajapalayam - View & Read

  • 1)

    Luminous intensity is the intensity of

  • 2)

    SI unit stands for

  • 3)

    Quantities other than base quantities are called as

  • 4)

    __________ is the measure of the perceived power of light.

  • 5)

    The unit of charge is ______

8th Science - Half Yearly Model Question Paper 2019 - 2020 - by Chitra - Rajapalayam - View & Read

  • 1)

    Heat is a form of ________.

  • 2)

    Conduction is the heat transfer which takes place in a____________.

  • 3)

    Fuse is

  • 4)

    Aerated water contains

  • 5)

    Carbon dioxide with water changes

8th Science - Term 2 Full Syllabus Five Marks Questions - by Chitra - Rajapalayam - View & Read

  • 1)

    Which one of the following statements about thermal conductivity is correct? Give reason.
    a) Steel > Wood > Water
    b) Steel > Water > Wood
    c) Water > Steel > Wood
    d) Water > Wood > Steel

  • 2)

    Soda bottle bursts sometimes when it is opened during summer. Why?

  • 3)

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

  • 4)

    Why does a light paddle wheel placed in the path of cathode rays begin to rotate, when cathode rays fall on it?

  • 5)

    How can we prove that the electrons carry negative charge?

8th Science - Term 2 Full Syllabus Three Marks Questions - by Chitra - Rajapalayam - View & Read

  • 1)

    Write a note on thermostat.

  • 2)

    Explain the working of thermos flask.

  • 3)

    Explain three ways of charge transfer.

  • 4)

    What is electroscope? Explain how it works?

  • 5)

    How lightning takes place?

8th Science - Term 2 Full Syllabus Two Marks Questions - by Chitra - Rajapalayam - View & Read

  • 1)

    What are the effects of heat?

  • 2)

    Name three types of heat transfer

  • 3)

    What is conduction?

  • 4)

    What is earthing?

  • 5)

    What is electric circuit?

8th Science - Term 2 Reaching the age of Adolescence One Mark Questions with Answer - by Chitra - Rajapalayam - View & Read

  • 1)

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

  • 2)

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

  • 3)

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

  • 4)

    Adam’s apple is the growth of the ________

  • 5)

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

8th Science - Term 2 Movements One Mark Questions with Answer - by Chitra - Rajapalayam - 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)

    Which one of the following organisms lack muscles and skeleton for movement?

  • 3)

    __________ joints are immovable.

  • 4)

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

  • 5)

    External ear (pinna )is supported by

8th Science - Term 2 Atomic Structure One Mark Questions with Answer - by Chitra - Rajapalayam - 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 Science - Term 2 Air One Mark Questions with Answer - by Chitra - Rajapalayam - 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?

View all

TN Stateboard Updated Class 8th Science Syllabus

T1 - Measurement

Introduction - System of Units - Temperature - Electric Current ( I ) - Amount of substance - Luminous Intensity - Plane angle - Solid Angle - Clocks - Accuracy in Measurements - Approximation - Rounding off - Numerical Problems

T1 - Forces and Pressure

Introduction - Force - Pressure Exerted By Air - Atmospheric Pressure - Forces In Liquids - Surface Tension - Friction - Viscous Force or Viscosity

T1 - Light

Introduction - Types of Mirrors - Terms Related to Spherical Mirrors - Images Formed By Spherical Mirrors - Applications of Curved Mirrors - Laws of Reflection - Types of Reflection - Multiple Reflections - Refraction of Light - Dispersion

T1 - Matter

Introduction - Why Symbols? - Metals and Non-Metals - Compound

T1 - Changes Around Us

Introduction - Chemical Reactions Based On Physical Contact - Chemical Reactions Based On Solution of Reactants - Chemical Reaction Based On Electricity - Chemical Reactions Based On Heat - Chemical Reactions Based On Light - Chemical Reaction Based On Catalyst - Effects of Chemical Reactions

T1 - Micro Organisms

Introduction - Virus - Bacteria - Fungi - Algae - Protozoa - Uses of Microorganisms In Medicine, Agriculture, Industry and Daily Life - Harmful Microorganisms - Microbes In Food Process - Relationship Between Man and Microbes-Balances, Imbalances and Uses - Prions - Virions

T1 - Plant Kingdom

Introduction - Taxonomy - Outline of Bentham and Hooker’s System of Classification - Binomial Nomenclature - Salient Features of Algae - Fungi - Bryophytes - Pteridophytes - Differences between Bryophytes and Pteridophytes - Gymnosperms - Angiosperms (Closed seeded plants) - Uses of Medicinal plants

T1 - Organisation of Life

Introduction - Organization of Cells and Tissues - Homeostasis - Diffusion - Osmosis - Osmoregulation - Cellular respiration - Metabolism

T1 - Introduction to the Information Age

Generation of Computers - Parts of a Computer - Input Unit - Mouse - Keyboard - Central Processing Unit (CPU) - Control Unit - Arithmetic Logic Unit - Memory Unit - Output Unit - Classification of Computer - Personal computer and its types - Hardware - Software - Types of Software - System Software - Application Software

TN StateboardStudy Material - Sample Question Papers with Solutions for Class 8 Session 2019 - 2020

Latest Sample Question Papers & Study Material for class 8 session 2019 - 2020 for Subjects Maths, Social Science in PDF form to free download [ available question papers ] for practice. Download QB365 Free Mobile app & get practice question papers.

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