10th Standard Science Study material & Free Online Practice Tests - View Model Question Papers with Solutions for Class 10 Session 2020 - 2021
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Science Question Papers

10th Standard Science English Medium - Electricity 7 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Following table gives the resistivity of three samples in (Ωm)

Sample A B C

Resistivity in Ω-m 1.6 x 10^-8 7.5 x 10^-7 44 x 10^-6

Which of them is a good conductor? And which of them is an insulation? Explain why?

The electrical resistivity of few materials is given below in ohm-meter.

Material	Resistivity (in ohm-metre)
A	6.84 x 10^-8
B	1.60 x 10^-8
C	2.30 x 10¹⁷
D	1.00 x 10^-6
E	2.50 x 10¹²
F	4.40 x 10^-8

Which of these materials can be used for making element of heating device?

Electrical resistivities of some substances at 200 C are given below:

Silver	1.60 x 10^-8Ω- m
Copper	1.62 x 10^-8Ω-m
Tungsten	5.20 x 10^-8Ω - m
Iron	10.0 x 10^-8Ω-m
Mercury	94.0 x 10^-8Ω-m
Nichrome	10.0 x 10^-8Ω-m

Answer the following question in relation to them:
(i) Among silver and copper, which one is a better conductor? Why?
(ii) Which material would you advise to be used in electrical heating devices? Why?

4)
The following table gives the resistivity of three samples:

Sample: A B C

Resistivity: 1.6 x 10^-8Ωm 5.1 x 10^-8Ωm 10.6 x 10^-8Ωm

Which of them is suitable for heating elements of electrical appliances and why?
5)
Two metallic wires A and B are connected in series. Wire A has length l and radius r, while wire B has length 2l and radius 2r. Find the ratio of the total resistance of series combination and the resistance of wire A, if both the wires are of same material.

10th Standard Science English Medium - Electricity 7 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected:
a) in series and
b) in parallel.
2)
a) What is meant by electric current?
b) Name and define its unit.
c) Which instrument is used to measure the electric current? How should it be connected in a circuit?
3)
a) State Joule’s law of heating.
b) An alloy of nickel and chromium is used as the heating element. Why?
c) How does a fuse wire protect electrical appliances?
4)
Explain about domestic electric circuits. (circuit diagram not required)
5)
a) What are the advantages of LED TV over the normal TV?
b) List the merits of LED bulb.

10th Standard Science English Medium - Electricity 4 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define electric potential and potential difference.
2)
What is the role of the earth wire in domestic circuits?
3)
State Ohm’s law.
4)
Distinguish between the resistivity and conductivity of a conductor.
5)
What connection is used in domestic appliances and why?

10th Standard Science English Medium - Electricity 4 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define electric potential and potential difference.
2)
What is the role of the earth wire in domestic circuits?
3)
State Ohm’s law.
4)
Distinguish between the resistivity and conductivity of a conductor.
5)
What connection is used in domestic appliances and why?

10th Standard Science English Medium - Electricity 2 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
What is the difference between open and dosed circuits?
2)
Why copper were is used as connecting wires in the circuit?
3)
What happens to resistance of the conductor
(i) when temperature is increased
(ii) length is doubled
(iii) area of cross section is increases
4)
Write the difference between ammeter and voltmeter
5)
Write the difference between conductor and insulator.

10th Standard Science English Medium - Electricity 2 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define the unit of current.
2)
What happens to the resistance, as the conductor is made thicker?
3)
Why is tungsten metal used in bulbs, but not in fuse wires?
4)
Name any two devices, which are working on the heating effect of the electric current.

10th Standard Science English Medium - Electricity 1 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
A series circuit consists of three resistors with values of 140, 250 and 220. The total resistance is
2)
When will be the current flow in a circuit?
3)
When one of three series resistors is removed from a circuit and the circuit is reconnected the current
4)
The S1 unit of power is
5)
A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is

10th Standard Science English Medium - Electricity 1 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Which of the following is correct?
2)
SI unit of resistance is
3)
In a simple circuit, why does the bulb glow when you close the switch?
4)
Kilowatt hour is the unit of

10th Standard Science English Medium - Thermal Physics 7 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Air pressure in car tyre increases during driving explain.
2)
Why will a watermelon stay cool for a longer time than sandwiches when both are removed from a cooler on a hot day?
3)
Does a substance that heats up quickly have a high or a low specific heat capacity?
4)
Why does a metal bar appear hotter than a wooden bar at the same temperature? Equivalently it also appears cooler than wooden bar if they are both colder than room temperature.
5)
How to establish the thermal equilibrium?

10th Standard Science English Medium - Thermal Physics 7 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Derive the ideal gas equation.
2)
Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.
3)
If you keep ice at 0°C and water at 0°C in either of your hands, in which hand you will feel more chillness? Why?

10th Standard Science English Medium -Thermal Physics 4 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define and describe thermal expansion.
2)
With an illustration, explain the method of Calculation for linear expansion of an object.
3)
With an illustration, explain the method of Calculation for arial expansion of an object.
4)
With an illustration, explain the method of Calculation for cubical expansion of an object.
5)
State and explain Boyle's law.

10th Standard Science English Medium -Thermal Physics 4 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Find the final temperature of a copper rod. Whose area of cross section changes from 10 m² to 11 m² due to heating. The copper rod is initially kept at 90 K. (Coefficient of superficial expansion is 0.0021 /K)
2)
Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased 0.25 m³ from 0.3 m³ due to the change in its temperature of 50 K.

10th Standard Science English Medium -Thermal Physics 2 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define temperature.
2)
What is absolute temperature?
3)
Define Kelvin.
4)
What is thermal energy?
5)
What is meant by heating?

10th Standard Science English Medium -Thermal Physics 2 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define one calorie.
2)
Distinguish between linear, Arial and superficial expansion.
3)
What is co-efficient of cubical expansion?
4)
State Boyle’s law
5)
State-the law of volume

10th Standard Science English Medium -Thermal Physics 1 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Which of the following has the fastest process of heat transfer?
2)
At what temperature are Celsius and Fahrenheit equal
3)
In which process heat is transferred directly from one molecule to other?
4)
Temperature is a property which determines
5)
SI unit of temperature is

10th Standard Science English Medium - Thermal Physics 1 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
The value of universal gas constant
2)
If a substance is heated or cooled, the change in mass of that substance is
3)
If a substance is heated or cooled, the linear expansion occurs along the axis of
4)
Temperature is the average ______ of the molecules of a substance
5)
In the Given diagram, the possible direction of heat energy transformation is

10th Standard Science English Medium - Optics 7 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
A convex lens of refractive in μ₁ is kept in a medium of refractive index (μ₂). A parallel beam of light is incident on the lens. Draw the path of the rays of light emerging from a lens. If
(a) μ₁ > μ₂
(b) μ₁ = μ₂
(c) μ₁ < μ₂
2)
Explain Rayleigh's scattering law.
3)
Explain about Tyndall scattering.
4)
Explain about Raman scattering.
5)
Write the classification of lenses in briefly.

10th Standard Science English Medium - Optics 7 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
An object is placed at a distance 20cm from a convex lens of focal length 10cm. Find the image distance and nature of the image.
2)
An object of height 3cm is placed at 10cm from a concave lens of focal length 15cm. Find the size of the image.
3)
While doing an experiment for the determination of focal length of a convex lens, Raja Suddenly dropped the lens. It got broken into two halves along the axis. If he continues his experiment with the same lens,
(a) can he get the image?
(b) Is there any change in the focal length?
4)
The eyes of the nocturnal birds like owl are having a large cornea and a large pupil. How does it help them?
5)
List any five properties of light.

10th Standard Science English Medium - Optics 4 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
State the laws of refraction.
2)
Explain Raman Scattering.
3)
Write the sign convention for lenses.
4)
Explain the Sign Conventions of lenses.
5)
Explain the working of the eye.

10th Standard Science English Medium - Optics 2 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
What are the conclusions obtained from laws of refraction?
2)
How is a rainbow formed?
3)
Name and explain the types of scattering?
4)
When does Mie scattering take place? Write the causes.
5)
Explain the types of lens.

10th Standard Science English Medium - Optics 2 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
What is refractive index?
2)
State Snell’s law.
3)
Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F.
4)
Define dispersion of light.
5)
State Rayleigh’s law of scattering.

10th Standard Science English Medium - Optics 1 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
The path of light is ______
2)
The group of rays is ______
3)
The velocity of light is _______
4)
Velocity and wavelength of light are related by a relation
5)
Violet and red light ______ wavelengths.

10th Standard Science English Medium - Optics 1 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in
2)
Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens
3)
A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce
4)
Magnification of a convex lens is
5)
A convex lens forms a real, diminished point sized image at focus. Then the position of the object is at

10th Standard Science English Medium - Laws of Motion 7 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Give the applications of universe law gravitation.
2)
Why does the recoil of a heavy gun on firing not so strong as of a light gun using the same cartridges?
3)
If a body moves with uniform velocity, what is the net force acting on a body?
4)
Meteorites are shooting stars. They completely burn out while they hit earth's atmosphere. Apply impulse concept to explain their burning action.
5)
A rocket with a lift - off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 ms^-2. Calculate the initial thrust (Force) of the blast?

10th Standard Science English Medium - Laws of Motion 7 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
What are the types of inertia? Give an example for each type.
2)
State Newton’s laws of motion?
3)
Deduce the equation of a force using Newton’s second law of motion.
4)
State and prove the law of conservation of linear momentum.
5)
Describe rocket propulsion.

10th Standard Science English Medium - Laws of Motion 4 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
What are the concepts prepared by Galileo?
2)
Give the application of torque.
3)
Give examples for Newton's third law.
4)
Derive the Relation between g and G?
5)
Discuss the apparent weight of a man in lift?

10th Standard Science English Medium - Laws of Motion 4 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms^-2. What could be the acceleration of the other body, if the same force acts on it.
2)
A ball of mass 1 kg moving with a speed of 10 ms^-1rebounds after a perfect elastic collision with the floor. Calculate the change in linear momentum of the ball.
3)
A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?
4)
The ratio of masses of two planets is 2:3 and the ratio of their radii is 4:7. Find the ratio of their accelerations due to gravity.

10th Standard Science English Medium - Laws of Motion 2 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
An athlete runs a certain distance before taking a long jump. Why?
2)
What is Mechanics? Explain its branches.
3)
What is meant by natural motion?
4)
When is a body said to be in rest and motion?
5)
Define Linear Momentum.

10th Standard Science English Medium - Laws of Motion 2 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Define inertia. Give its classification.
2)
Classify the types of force based on their application.
3)
If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force
4)
Differentiate mass and weight.
5)
Define moment of a couple.

10th Standard Science English Medium - Laws of Motion 1 Mark Creative Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Physics that deals with the effect of force on bodies is
2)
______ deals with the bodies which are at rest under the action of forces.
3)
Study of moving bodies under the action of forces ______
4)
The resistance of a body to change its state of rest is called
5)
The resistance of a body to change its state of motion is called

10th Standard Science English Medium - Laws of Motion 1 Mark Book Back Question Paper and Answer Key 2022 - 2023 - by Study Materials - View & Read

1)
Inertia of a body depends on
2)
Impulse is equals to
3)
Newton’s III law is applicable
4)
Plotting a graph for momentum on the Y-axis and time on X-axis. slope of momentum- time graph gives
5)
In which of the following sport the turning of effect of force used

10th Standard Science Visual Communication English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
All files are stored in the _____________
2)
Which is used to edit programs?
3)
Where you will create category of blocks?
4)
Which button we use to select a required program?
5)
Notes can be collected, edited and printed using______

10th Standard Science Environmental Management English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
A renewable source of energy is
2)
An inexhaustible resources is
3)
Common energy source in village is
4)
Which of the following statement is wrong with respect to wind energy
5)
There are______ biosphere reserves in India.

10th Standard Science Health and Diseases English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
World 'No Tobacco Day' is observed on
2)
Which type of cancer affects lymph nodes and spleen?
3)
Excessive consumption of alcohol leads to
4)
Cancer of the epithelial cells is called
5)
Where does alcohol effect immediately after drinking?

10th Standard Science Breeding and Biotechnology English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Pusa Komal is a disease resistant variety of _________.
2)
rDNA is a
3)
Organisms with modified endogenous gene or a foregin gene are also known as
4)
Dr. Norman received the Nobel peace prize in_________
5)
The International rice research institute is located at___________.

10th Standard Science Origin and Evolution of Life English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The ‘use and disuse theory’ was proposed by __________.
2)
The best way of direct dating fossils of recent origin is by
3)
________ is not an example of vestigial organ.
4)
_________ is called the Father of Palaeontology.
5)
_______ is the only planet in the Goldilock zone.

10th Standard Science Genetics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
9 : 3 : 3 : 1 ratio is due to
2)
The centromere is found at the centre of the ________________ chromosome
3)
Okasaki fragments are joined together by ___________________.
4)
The sex chromosomes in a human cell refer to the______
5)
L shaped chromosomes are described as_______

10th Standard Science Reproduction in Plants and Animals English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Asexual reproduction takes place through budding in ___________
2)
The essential parts of a flower are__________
3)
Male gametes in angiosperms are formed by the division of ___________
4)
Estrogen is secreted by
5)
Which one of the following is an IUCD?

10th Standard Science Visual Communication English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
All files are stored in the _____________
2)
Which is used to edit programs?
3)
Where you will create category of blocks?
4)
Which button we use to select a required program?
5)
Notes can be collected, edited and printed using______

10th Standard Science Plant and Animal Hormones English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The hormone which has positive effect on apical dominance is:
2)
Avena coleoptile test was conducted by
3)
To increase the sugar production in sugarcanes they are sprayed with _______
4)
Which one is referred as “Master Gland”?
5)
Auxins were identified by ______

10th Standard Science Nervous System English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
In reflex action, the reflex arc is formed by
2)
Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.
3)
There are ________ pairs of cranial nerves and _______ pairs of spinal nerves.
4)
Node of Ranvier is found in
5)
Vomiting centre is located in

10th Standard Science Transportation in Plants Circulation in Animals English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by doctor for transfusion?
2)
‘Heart of heart’ is called
3)
Which one of the following shows correct composition of blood
4)
Persons with __________ blood group can receive blood from 'AB' group individuals.
5)
The number of______ increases during allergy.

10th Standard Science Structural Organisation of Animals English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The segments of leech are known as
2)
The brain of leech lies above the
3)
In leeches sperms are stored in
4)
The ovaries of leech lies in the ________segment.
5)
The number of cranial and spinal nerves in rabbit are_______ respectively

10th Standard Science Plant Anatomy and Plant Physiology English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Casparian strips are present in the _____________ of the root.
2)
The xylem and phloem arranged side by side on same radius is called _________
3)
Oxygen is produced at what point during photosynthesis ?

10th Standard Science Carbon and Its Compounds English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The IUPAC name of an organic compound is 3-Methyl butan-1-ol. What type compound it is?
2)
Which of the following pairs can be the successive members of a homologous series?
3)
Rectified spirit is an aqueous solution which contains about _______ of ethanol
4)
TFM in soaps represents ___________ content in soap
5)
Cyclobutane is an example of ______________ compounds.

10th Standard Science Types of Chemical Reactions English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Photolysis is a decomposition reaction caused by __________
2)
A single displacement reaction is represented by X_(s) + 2HCl_(aq) → XC_l2(aq) + H_2(g). Which of the following(s) could be X. (i) Zn (ii) Ag (iii) Cu (iv) Mg. Choose the best pair.
3)
Which of the following represents a precipitation reaction?
4)
The product formed when calcium oxide reacts with water is
5)
An element 'A' on exposure to moist air turns to form compound 'B' which is reddish brown. Identify 'A'.and 'B'

10th Standard Science Solutions English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The number of components in a binary solution is _____________
2)
Identify the non aqueous solution.
3)
Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation _____________
4)
Which of the following is hygroscopic in nature?
5)
40 g of sodium chloride in 100 g of water at 25⁰ C forms ________ solution.

10th Standard Science Atoms and Molecules English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The volume occupied by 4.4 g of CO₂ at S.T.P
2)
Which of the following represents 1 amu?
3)
The volume occupied by 1 mole of a diatomic gas at S.T.P is
4)
1 mole of any substance contains __________ molecules
5)
Atoms of different elements with different atomic numbers, but same mass number are known as _________

10th Standard Science Nuclear Physics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Unit of radioactivity is _____________
2)
_____________ aprons are used to protect us from gamma radiations
3)
In the nuclear reaction ₆X¹² \(\overset { \alpha \ decay }{ \longrightarrow } \) _zY^A the value of A & Z.
4)
Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled
iii. The chain reaction in a nuclear reactor is not controlled
iv. No chain reaction takes place in an atom bomb
5)
The explosion of the atomic bomb takes place due to

10th Standard Science Acoustics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Velocity of sound in a gaseous medium is 330 ms^-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
2)
If a sound wave travels with a frequency of 1.25 x 10⁴ Hz 344 ms^-1, the wavelength will be
3)
Velocity of sound in the atmosphere of a planet is 500 ms^-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be
4)
The velocity of sound is affected by
5)
The region of a sound wave having low pressure is

10th Standard Science Electricity English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
SI unit of resistance is
2)
Kilowatt hour is the unit of
3)
When will be the current flow in a circuit?
4)
A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is
5)
The resistance of material depends on.

10th Standard Science Electricity English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
SI unit of resistance is
2)
Kilowatt hour is the unit of
3)
When will be the current flow in a circuit?
4)
A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is
5)
The resistance of material depends on.

10th Standard Science Thermal Physics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
If a substance is heated or cooled, the change in mass of that substance is
2)
Temperature is the average ______ of the molecules of a substance
3)
In which process heat is transferred directly from one molecule to other?
4)
SI unit of temperature is
5)
Increase in area due to heating is called

10th Standard Science Optics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce
2)
Power of a lens is –4D, then its focal length is
3)
Which of the following lens would you prefer to use while reading small letters found in a dictionary?
4)
The group of rays is ______
5)
Velocity and wavelength of light are related by a relation

10th Standard Science Laws of Motion English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
Impulse is equals to
2)
In which of the following sport the turning of effect of force used
3)
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg
4)
To project the rockets which of the following principle(s) is /(are) required?
5)
______ deals with the bodies which are at rest under the action of forces.

10th Standard Science Periodic Classification of Elements English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 - by Question Bank Software - View & Read

1)
The basis of modern periodic law is__________
2)
Chemical formula of rust is ________.
3)
The process of coating the surface of metal with a thin layer of zinc is called______.
4)
______ is an important metal to form amalgam
5)
Among the halogens which one is most electro-negative?

10th Standard Science Visual Communication English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
All files are stored in the _____________
2)
Which is used to build scripts?
3)
Which is used to edit programs?
4)
Multiple files are stored in a ___________.
5)
Notes can be collected, edited and printed using______

10th Standard Science Environmental Management English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
What are the steps will you adopt for better waste management?
2)
Common energy source in village is
3)
A cheap, conventional, commercial and inexhaustible source of energy is
4)
The Chipko movement originated in_________
5)
The system of National parks and wild life sanctuaries was established in________

10th Standard Science Health and Diseases English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
World 'No Tobacco Day' is observed on
2)
Which type of cancer affects lymph nodes and spleen?
3)
Cancer of the epithelial cells is called
4)
Polyphagia is a condition seen in
5)
______________ is a symptom of CHD.

10th Standard Science Breeding and Biotechnology English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Pusa Komal is a disease resistant variety of _________.
2)
rDNA is a
3)
The International rice research institute is located at___________.
4)
The rice variety peta was from __________
5)
Pusa snowball is a disease resistant variety of________.

10th Standard Science Origin and Evolution of Life English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Paleontologists deal with
2)
The best way of direct dating fossils of recent origin is by
3)
_________ is called the Father of Palaeontology.
4)
Ancon sheep is an example of _________.
5)
Biogenetic law or Recapitulation theory was given by__________

10th Standard Science Genetics English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
9 : 3 : 3 : 1 ratio is due to
2)
The centromere is found at the centre of the ________________ chromosome
3)
Okasaki fragments are joined together by ___________________.
4)
The loss of one or more chromosome in a ploidy is called_____________.
5)
The haploid condition in a human cell refers to________ chromosomes

10th Standard Science Reproduction in Plants and Animals English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Asexual reproduction takes place through budding in ___________
2)
Anemophilous flowers have __________
3)
The large elongated cells that provide nutrition to developing sperms are
4)
The pollen is produced in________
5)
Endometrium is prepared for implantation in_________

10th Standard Science Plant and Animal Hormones English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The hormone which has positive effect on apical dominance is:
2)
Which one of the following hormones is naturally not found in plants.
3)
Identify the exocrine gland
4)
Auxins were identified by ______
5)
_____ induces bud dormancy towards approach of winter in trees.

10th Standard Science Nervous System English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Site for processing of vision, hearing, memory, speech, intelligence and thought is
2)
The neurons which carries impulse from the central nervous system to the muscle fibre.
3)
Vomiting centre is located in
4)
Sneezing, yawning etc are examples of _______
5)
The _____ is the second largest part of the brain.

10th Standard Science Transportation in Plants Circulation in Animals English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Active transport involves
2)
During transpiration there is loss of
3)
Which of the following process requires energy?
4)
A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by doctor for transfusion?
5)
The number of______ increases during allergy.

10th Standard Science Structural Organisation of Animals English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
In leech locomotion is performed by
2)
Pharyngeal ganglion in leech is a part of
3)
The brain of leech lies above the
4)
The animals which give birth to young ones are
5)
In leeches there are ________pairs of nephridia.

10th Standard Science Plant Anatomy and Plant Physiology English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The xylem and phloem arranged side by side on same radius is called _________
2)
Oxygen is produced at what point during photosynthesis ?
3)
Exarch and tetrarch xylem are a feature of ___________.
4)
Mitochondria was discovered by ___________

Create and posted Carbon and Its Compounds English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The secondary suffix used in IUPAC nomenclature of an aldehyde is ____
2)
Which of the following are used as anaesthetics?
3)
Which of the following statements is wrong about detergents?
4)
Cyclobutane is an example of ______________ compounds.
5)
Methylene group is

Create and posted Types of Chemical Reactions English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Photolysis is a decomposition reaction caused by __________
2)
A single displacement reaction is represented by X_(s) + 2HCl_(aq) → XC_l2(aq) + H_2(g). Which of the following(s) could be X. (i) Zn (ii) Ag (iii) Cu (iv) Mg. Choose the best pair.
3)
The pH of a solution is 3. Its [OH–] concentration is
4)
The reaction between hydrogen and oxygen gas to form water is ____________ reaction.
5)
Which among the following chemical reaction is an example of combination reaction?
(i) H_2(g)+ CI_2(g) ⟶ 2HCI_(g)
(ii) AnOH_(aq)+ HCl_(aq) ⟶ NaCl_(aq)+ H2O₍₁₎
(iii)2Mg(S)+ O_2(g) ⟶ 2MgO_(S)
(iv) Zn(S)+ 2HCI_(aq)⟶ ZnCl₂ + H_2(g)

10th Standard Science Solutions English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The number of components in a binary solution is _____________
2)
Identify the non aqueous solution.
3)
A 25% alcohol solution means
4)
40 g of sodium chloride in 100 g of water at 25⁰ C forms ________ solution.
5)
White vitriol is ________

10th Standard Science Periodic Classification of Elements English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The basis of modern periodic law is__________
2)
Chemical formula of rust is ________.
3)
Neon shows zero electron affinity due to _____.
4)
The green layer found on the copper vessel is due to the formation of ________
5)
Pottassium belongs to ________ period

10th Standard Science Atoms and Molecules English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Which of the following has the smallest mass?
2)
Which of the following represents 1 amu?
3)
In the nucleus of₂₀Ca⁴⁰, there are
4)
Pick out the isotopes among the following pairs
5)
Mass number is the

10th Standard Science Nuclear Physics English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Unit of radioactivity is _____________
2)
_____________ aprons are used to protect us from gamma radiations
3)
Kamini reactor is located at __________
4)
The control rod in a nuclear reactor is made of
5)
Fusion reaction is initiated with the help of
(i) low temp
(ii) high temp
(iii) low press
(iv) high press

10th Standard Science Acoustics English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
2)
The velocity of sound is affected by
3)
A sound wave passes through gold rod and comes into the surrounding air. What is the relation between original wavelength A and new wavelength λ'?
4)
A car playing music at a frequency of 250 Hz moves at 20 m/s towards an observer that has frequency. What frequency the observer can hear when
(i) it approaches and
(ii) when it passes by?
5)
Infrasound can be heard or produced by

10th Standard Science Electricity English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Which of the following is correct?
2)
In a simple circuit, why does the bulb glow when you close the switch?
3)
When will be the current flow in a circuit?
4)
The S1 unit of power is
5)
According to Ohm's law if voltage increase and resistance stays the same

10th Standard Science Thermal Physics English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
If a substance is heated or cooled, the change in mass of that substance is
2)
Temperature is the average ______ of the molecules of a substance
3)
Which of the following has the fastest process of heat transfer?
4)
In which process heat is transferred directly from one molecule to other?
5)
SI unit of temperature is

10th Standard Science Optics English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens
2)
Power of a lens is –4D, then its focal length is
3)
Which of the following lens would you prefer to use while reading small letters found in a dictionary?
4)
The velocity of light is _______
5)
The splitting up of white light into colours is called

10th Standard Science Laws of Motion English Medium Free Online Test 1 Mark Questions 2020-2021 - by Question Bank Software - View & Read

1)
Impulse is equals to
2)
In which of the following sport the turning of effect of force used
3)
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg
4)
If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will
5)
______ deals with the bodies which are at rest under the action of forces.

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 3 - by Question Bank Software - View & Read

1)
Mixing sugar in a glass of milk using a spoon is ______
2)
A body of mass 1 kg is attracted by the earth with a force which is equal to
3)
We can see objects because of
4)
According to snell's law
5)
The change in the focal length of human eye is caused by

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 2 - by Question Bank Software - View & Read

1)
A luggage is usually tied with a rope on the roof of the buses due to
2)
What would happen, if the force of gravity disappears suddenly on earth?
3)
Convex lens produces a ______ beam of light.
4)
The reciprocal of the focal length of the lens is
5)
In compound microscope, as compare to eye piece, objective lens has _____ focal length.

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 1 - by Question Bank Software - View & Read

1)
The act of cleaning a carpet by heating it with a stick is an example for inertia of
2)
At the surface of earth an object falling freely experiences an acceleration of
3)
Rainbow formation is due to _____ water droplets.
4)
An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must
5)
Objective of telescope is of

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - Three - by Question Bank Software - View & Read

1)
Opening a door is an example of _______
2)
Newton's law of gravitation applies to
3)
Rainbow formation is due to _____ water droplets.
4)
The diameter of eyeball is
5)
Increase in area due to heating is called

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - Two - by Question Bank Software - View & Read

1)
The physical quantity which is the measure of inertia is _______
2)
The value of g
3)
A star appears twinkling in the sky because of ______ by the atmosphere.
4)
To heavenly objects like stars ______ is used
5)
At constant temperature volume is inversely proportional to pressure of a gas is known as

10th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - One - by Question Bank Software - View & Read

1)
The resistance of a body to change its state of motion is called
2)
The ball is thrown up, the value of g will be
3)
When light travels from rarer to denser medium, the refracted ray is ______ the normal.
4)
An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must
5)
All the substances will undergo the following changes like _____ when heated.

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 3 - by Question Bank Software - View & Read

1)
In which of the following sport the turning of effect of force used
2)
In a myopic eye, the image of the object is formed
3)
Temperature is the average ______ of the molecules of a substance
4)
In a simple circuit, why does the bulb glow when you close the switch?
5)
If a sound wave travels with a frequency of 1.25 x 10⁴ Hz 344 ms^-1, the wavelength will be

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 2 - by Question Bank Software - View & Read

1)
If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will
2)
The eye defect ‘presbyopia’ can be corrected by
3)
In a simple circuit, why does the bulb glow when you close the switch?
4)
Velocity of sound in the atmosphere of a planet is 500 ms^-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be
5)
_____________ aprons are used to protect us from gamma radiations

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 1 - by Question Bank Software - View & Read

1)
The unit of ‘g’ is m s^-2. It can be also expressed as
2)
The eye defect ‘presbyopia’ can be corrected by
3)
If a substance is heated or cooled, the linear expansion occurs along the axis of
4)
If a sound wave travels with a frequency of 1.25 x 10⁴ Hz 344 ms^-1, the wavelength will be
5)
_____________ aprons are used to protect us from gamma radiations

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Three - by Question Bank Software - View & Read

1)
Artificial radioactivity was discovered by_____
2)
Proton - Proton chain reaction is an example of__________
3)
Which of the following represents 1 amu?
4)
The basis of modern periodic law is__________
5)
Neon shows zero electron affinity due to _____.

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Two - by Question Bank Software - View & Read

1)
Newton’s III law is applicable
2)
In a myopic eye, the image of the object is formed
3)
Temperature is the average ______ of the molecules of a substance
4)
In a simple circuit, why does the bulb glow when you close the switch?
5)
If a sound wave travels with a frequency of 1.25 x 10⁴ Hz 344 ms^-1, the wavelength will be

10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - One - by Question Bank Software - View & Read

1)
The unit of ‘g’ is m s^-2. It can be also expressed as
2)
A convex lens forms a real, diminished point sized image at focus. Then the position of the object is at
3)
In the Given diagram, the possible direction of heat energy transformation is
4)
In a simple circuit, why does the bulb glow when you close the switch?
5)
The velocity of sound in air at a particular temperature is 330 ms^-1. What will be its value when temperature is doubled and the pressure is halved?

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 10 - by Question Bank Software - View & Read

1)
The resistance of a body to change its state of rest is called
2)
The physical quantity which is equal to change in momentum is
3)
For air, the refractive index is
4)
The image formed by retina of human eye is
5)
In compound microscope, as compare to eye piece, objective lens has _____ focal length.

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 9 - by Question Bank Software - View & Read

1)
Plotting a graph for momentum on the Y-axis and time on X-axis. slope of momentum- time graph gives
2)
Mixing sugar in a glass of milk using a spoon is ______
3)
The acceleration in a body is due to
4)
The value of g
5)
Power of a lens is –4D, then its focal length is

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

1)
Impulse is equals to
2)
Mixing sugar in a glass of milk using a spoon is ______
3)
The ball is thrown up, the value of g will be
4)
In a myopic eye, the image of the object is formed
5)
_____ determines speed of light in a medium.

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 7 - by Question Bank Software - View & Read

1)
If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will
2)
Opening a door is an example of _______
3)
The resultant of action & reaction forces is ______
4)
A lift of mass 1000 kg which is moving with an acceleration of 1 ms^-2 in upward direction, then the tension developed in string which is connected to lift is
5)
If the energy of the incident and scattered beam of light are same, then it is called ______ scattering

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 6 - by Question Bank Software - View & Read

1)
One kilogram force equals to
2)
The resistance of a body to change its state of motion is called
3)
An ice skater pushes harder with his leg muscles, he begins to move faster. This is an example of
4)
The force of gravitation between two bodies in the universe does not depend on
5)
Power of a lens is –4D, then its focal length is

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 5 - by Question Bank Software - View & Read

1)
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg
2)
Mixing sugar in a glass of milk using a spoon is ______
3)
The value of g
4)
Which of the following lens would you prefer to use while reading small letters found in a dictionary?
5)
Red light is used in traffic signals because

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 4 - by Question Bank Software - View & Read

1)
In which of the following sport the turning of effect of force used
2)
A & B are two objects with masses 100 kg & 75 kg respectively, then _______
3)
The gravitational force of earth acting on a body of mass 1 kg is ___________
4)
In a myopic eye, the image of the object is formed
5)
In spherical lenses, all distance are measured from

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 3 - by Question Bank Software - View & Read

1)
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg
2)
The physical quantity which is the measure of inertia is _______
3)
A body of mass 1 kg is attracted by the earth with a force which is equal to
4)
Which of the following lens would you prefer to use while reading small letters found in a dictionary?
5)
The group of rays is ______

10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 2 - by Question Bank Software - View & Read

1)
One kilogram force equals to
2)
______ deals with the bodies which are at rest under the action of forces.
3)
A force is applied by direct physical contact between two bodies is
4)
SI unit of impulse is
5)
Which of the following lens would you prefer to use while reading small letters found in a dictionary?

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Science 2019 - 2020 Academic Monthly Syllabus

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TN Stateboard Updated Class 10th Science Syllabus

Laws of Motion

Introduction - Force and Motion - Inertia - Linear Momentum - Newton’s Law of Motion - Newton’s Second Law of Motion - Impulse - Newton’s Third Law of Motion - Principle of Conservation of Linear Momentum - Rocket Propulsion - Gravitation - Mass and Weight - Apparent Weight

Optics

Introduction - Properties of Light - Refraction of Light - Refraction of A Composite Light-Dispersion of Light - Scattering of Light - Lenses - Images Formed Due To Refraction Through A Convex and Concave Lens - Refraction Through A Convex Lens - Applications of Convex Lenses - Refraction Through A Concave Lens - Applications of Concave Lenses - Lens Formula - Sign Convention - Magnification of A Lens - Lens Maker’s Formula - Power of A Lens - Human Eye - Defects In Eye - Microscope - Telescope

Thermal Physics

Introduction - Temperature - Thermal Energy - Effect of Heat Energy - Fundamental Laws of Gases - Gases

Electricity

Introduction - Electric Current - Electric Circuit - Electric Potential and Potential Difference - Ohm’s Law - Resistance of a Material - Electrical Resistivity & Electrical Conductivity - System of Resistors - Heating Effect of Current - Electric Power - Domestic Electric Circuits - LED Bulb - LED Television

Acoustics

Introduction - Sound Waves - Reflection of Sound - Echoes - Applications Reflection of Sound - Doppler Effect

Nuclear Physics

Introduction - Radioactivity - Alpha, Beta and Gamma Rays - Nuclear Fission - Nuclear Fusion - Uses of Radioactivity - Safety Measures - Nuclear Reactor

Atoms and Molecules

Introduction - Atom and Atomic Mass - Molecule and Molecular Mass - Difference Between Atoms and Molecules - Mole Concept - Percent Composition - Avogadro Hypothesis - Applications of Avogadro's Law - Relationship Between Vapour Density and Relative Molecular Mass - Solved Problems

Periodic Classification of Elements

Introduction - Modern Periodic Law - Modern Periodic Table - Periodic Trends In Properties - Metallurgy - Occurrence of Ores In Tamilnadu - Properties of Metals - Extractive Metallurgy of Aluminium - Extractive Metallurgy of Copper - Extractive Metallurgy of Iron - Alloys - Corrosion - Pamban Bridge

Solutions

Introduction - Solutions In Day to Day Life - Components of Solutions - Types of Solutions - Solubility - Concentration of a Solution - Hydrated salts and Water of Crystallization - Hygroscopy - Deliquescence - Problems Based on Solubility and Percentage by Mass and Volume

Types of Chemical Reactions

Introduction - Types of Chemical Reactions - Rate of Chemical Reaction - State of Equilibrium - Ionic Product of Water - pH Scale - Role of pH In Everyday Life - pH Calculation - Problems

Carbon and Its Compounds

Introduction - General Characteristics of Organic Compounds - Classification of Organic Compounds Based On The Pattern of Carbon Chain - Classes of Organic Compounds (Based On The Kind of Atoms) - Homologous Series - Nomenclature of Organic Compounds - Ethanol (CH₃CH₂OH) - Ethanoic Acid (CH₃COOH) - Organic Compounds In Daily Life - Soaps and Detergents

Plant Anatomy and Plant Physiology

Introduction - Tissues - Tissue System - Internal Structure of Dicot Root (Bean) - Internal Structure of Monocot Root (Maize) - Internal Structure of Dicot Stem (Sunflower) - Internal Structure of Monocot Stem (Maize) - Internal Structure of Dicot or Dorsiventral Leaf (Mango) - Internal Structure of Monocot or Isobilateral Leaf - Plastids - Mitochondria - Types of Respiration

Structural Organisation of Animals

Introduction - The Indian Cattle Leech (Hirudinaria Granulosa) - Rabbit (Oryctolagus Cuniculus)

Transportation in Plants Circulation in Animals

Introduction - Means of Transport in Plants - Root Hair - Pathway of Water Absorbed by Roots - How do Plants Absorb Water? - Transpiration - Root Pressure - Uptake of Minerals - Translocation of Mineral Ions - Phloem Transport - Translocation of Sugars - Ascent of Sap and its Events – An Overview - Blood - Blood Vessels - Arteries and Veins - Types of Circulatory System - Structure of Human Heart - Blood pressure - Blood Groups - Lymphatic System

Nervous System

Introduction - Nervous System - Transmission of Nerve Impulse - Human Nervous System - Cerebrospinal Fluid - Reflex Action - Peripheral Nervous System - Autonomic Nervous System

Plant and Animal Hormones

Introduction - Plant Hormones - Human Endocrine Glands

Reproduction in Plants and Animals

Introduction - Vegetative Reproduction - Asexual Reproduction - Sexual Reproduction in Plants - Pollination - Agents of Cross-Pollination - Fertilization in Plants - Sexual Reproduction in Human - Gametogenesis - Menstrual Cycle-Process of Ovulation - Fertilization to Foetal Development - Reproductive Health - Population Explosion and Family Planning - Urinary Tract Infection (UTI) - Personal Hygiene

Heredity

Introduction - Gregor Johann Mendel - Father of Genetics - Monohybrid Cross Inheritance of One Gene - Dihybrid Cross-Inheritance Two Genes and Law of Independent Assortment - Mendel’s Laws - Chromosomes, DNA and Genes - Structure of DNA - Sex Determination

Origin and Evolution of Life

Introduction - Theories on Origin of Life - Evidences of Evolution - Theories of Evolution - Variation - Paleobotany - Ethnobotany - Astrobiology/Exobiology

Breeding and Biotechnology

Introduction - Modern Agricultural Practices and Crop Improvement - Green Revolution - Methods of Plant Breeding for Crop Improvement - Animal Breeding - Genetic Engineering - Biotechnology in Medicine - Stem Cells - DNA Fingerprinting Technology - Genetically Modified Organisms (GMOs)

Health and Diseases

Introduction - Abuse and Types of Abuse - Drug, Alcohol, and Tobacco Abuse - Drug Abuse - Tobacco Abuse - Alcohol Abuse - Rehabilitation Measures for Alcoholics - Diseases and Disorders due to Lifestyle Modifications - Diabetes Mellitus - Obesity - Heart Disease - Cancer - AIDS (Acquired Immunodeficiency Syndrome)

Environmental Management

Introduction - Conservation and Judicious Use of Resources - Forest and its Importance - Wildlife and its Conservation - Soil Erosion - Renewable and Non-Renewable Energy Resources - Non-Conventional (Alternative) Energy Resources - Rainwater Harvesting - Electrical Energy Management - E-Wastes and its Management - Sewage Management - Solid Waste Management

Visual Communication

Introduction - File - Scratch

10th Standard Science Videos

10th Standard Science - Acoustics Study Materials

Tamil Medium

English Medium

Other 10th Standard Subjects

Updated Chapters in 10th Standard Science

Laws of Motion

Optics

Thermal Physics

Electricity

Acoustics

Nuclear Physics

Atoms and Molecules

Periodic Classification of Elements

Solutions

Types of Chemical Reactions

Carbon and Its Compounds

Plant Anatomy and Plant Physiology

Structural Organisation of Animals

Transportation in Plants Circulation in Animals

Nervous System

Plant and Animal Hormones

Reproduction in Plants and Animals

Genetics

Origin and Evolution of Life

Breeding and Biotechnology

Health and Diseases

Environmental Management

Visual Communication

Sample	A	B	C
Resistivity in Ω-m	1.6 x 10^-8	7.5 x 10^-7	44 x 10^-6

Sample:	A	B	C
Resistivity:	1.6 x 10^-8Ωm	5.1 x 10^-8Ωm	10.6 x 10^-8Ωm

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