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STD - VI
Question Bank
GENERAL SCIENCE
Lesson – 1
Habitat
I . Fill in the blanks :- (1m)
1.
2.
3.
4.
5.
Very high salinity is found in ________________ water.
The most important abiotic component of aquatic habitat is _____________.
Physical condition is a habitat determines the _________________ in the habitat.
The quantity of rainfall in desert habitat is _____________________.
The least amount of light is seen in the ____________ habitat.
II. Answer in one sentence :- (1m)
6. What is the percentage of salinity of sea water?
7. What are autotrophs?
8. Which habitat has dry weather and meager rainfall?
9. Name two plants of desert habitat.
10. What is the problem faced by fishes living in river water?
11. How many cm of rain does a forest habitat receive per year?
12. Name the process by which fertile lands turn into deserts.
13. What is a termitaria?
III. Answer in two sentences:- (2m)
14. Where does a snake live?
15. Why camel is called the ship of the desert?
16. What are amphibious animals? Give an example.
17. Depending on amount of salinity name the three types of water habitat.
18. What are adaptations?
IV .Answer the following: - (3m)
19. What are the three types of terrestrial habitat depending on rainfall?Mention the amount of rainfall
per year for each habitat.
20. What is an estuary? How much is its salinity?
V. Answer the following (4m)
21. List the rainfall, vegetation and animals of grassland habitat.
22. List out four abiotic components of terrestrial habitat
Lesson – 2
Body Organisation In Organisms
I
Fill in the blanks: 1M
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2.
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4.
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Whales respire through _________.
Body of birds is covered by ____________.
Flattened extension of body is fishes are _______.
Reservoir of food in onion plant is ________.
Main function of flower is ____________.
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6. Layer of fatty substance beneath the skin of whale is called __________.
7. Bones of birds are called _________ bones.
8. Animals with backbones are called ____________.
9. Animals without backbones are called __________.
10. Orchid plants have __________ roots.
11. Reproduction in rose plant is called ___________ reproduction.
12. Leaves contain ___________ which conduct photosynthesis.
13. ______________ are changes in animal bodies to adjust to surroundings or habitats.
14. Body shape of a fish is ___________
15. Fish respire through ___________
16. Limbs having five digits are called _____________ limbs
17. Skin between forelimbs and hind-limbs in bats is called _____________
18. Grass has a _________ root system
19. Special roots arising from lower branches of banyan tree that penetrate the soil are called _______
roots
20. Petals of flowers are brightly coloured to attract _________
II. Answer the following: - (1m)
1.
2.
3.
4.
5.
What is a pentagium?
What is blubber?
What is the main function of the stem?
What are the respiratory organs of dolphins?
What is the main function of a leaf?
III. Answer the following: - (2m)
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2.
3.
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5.
Name the four main parts in the body of vertebrates.
What are the two main functions of the root?
What is the function of absorptive roots? Give an example
What are the two additional features of a stem?
How does the streamlined shape of a fish help it?
IV. Answer the following in 2-3 sentences: - (3m)
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2.
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4.
What is fur? How does it help the animal?
What is the function of scales on the body of marine fish?
Name the unpaired fins in fishes
Name the supplementary structures of the skin
V. Answer the following:1.
2.
3.
4.
5.
Mention the adaptations in dolphin
Explain the adaptations in the polar bear
Draw a neat diagram of a fish and label its parts
Draw a neat diagram of a flower and label the parts
Draw a neat labeled diagram of a plant and label the plants
Lesson – 3
3
Elements and Compounds
I. Fill in the blanks:1. Substances are made up of small particles called ____________.
2. Central part of the atom is called the ___________.
3. _____________ revolve around the nucleus in different elliptical orbits.
4. Substances made up of the same kind of atoms are called __________.
5. About __________ elements are naturally occurring.
6. ____________ is filled inside the clinical thermometer.
7. _________ used simple pictures to denote elements.
8. Pictures were replaced by symbols to denote elements by ____________.
9. Chemical symbol of carbon is ___________.
10. Chemical symbol of Aluminum is _____________.
11. Chemical symbol of Phosphorous is _____________.
12. Chemical symbol of Hydrogen is ________________.
13. Chemical symbol of Fluorine is __________.
14. Chemical symbol of Boron is __________.
15. Chemical symbol of Nitrogen is ____________.
16. Chemical symbol of Sulphur is ____________.
17. Chemical symbol of Radium is ___________.
18. Chemical symbol of Silicon is ___________.
19. Chemical symbol of Cobalt is ___________.
20. Chemical symbol of Magnesium is _________.
21. Chemical symbol of Manganese is ___________.
22. Chemical symbol of Sodium is ___________.
23. Chemical symbol of Copper is ____________.
24. Chemical symbol of Silver is ___________.
25. Chemical symbol of Gold is ___________.
26. Chemical symbol of Mercury is ____________.
27. Chemical symbol of Potassium is ____________.
28. Chemical symbol of Iron is ___________.
29. Chemical symbol of Lead is ____________.
30. ____________ arranged all elements in an order in a tabular column.
31. Common salt is chemically called _______________.
32. The molecular formula of carbon dioxide is ___________.
33. Potassium permanganate has one atom of potassium, one atom of manganese, and four atoms of
oxygen, its formula is _____________.
34. Latin name of sodium is ___________.
35. Elements present in nitric acid are nitrogen, hydrogen and _______________.
36. The molecular formula for hydrogen molecule is ___________.
37. _____________ + Oxygen Magnesium oxide
38. Sodium + ______________  Sodium chloride
II. Answer the following:-(1m)
1. Write the molecular formula of ammonia.
2. Write the molecular formula of Sodium chloride.
3. Write the molecular formula of Sulphuric acid.
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4. Write the molecular formula of Water.
5. Write the molecular formula of Carbon dioxide.
III. Answer the following:- (2m)
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2.
3.
4.
Name the three fundamental particles of an atom.
What is the ratio of combination of Nitrogen and Hydrogen in Ammonia?
What does the nucleus of an atom consist of?
What are elements? Give an example.
IV. Answer the following:- (3m)
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2.
3.
4.
What is an atom? Name the three fundamental particles of an atom.
What is a chemical symbol? Write the symbols of mercury and Tungsten
What is a compound? Give example
What is a molecule? Explain?
V. Answer the following:- (4m)
1. The molecular formula of sodium sulphate is Na2So4
a) Name the elements present in the compound
b) Write the number of atoms of each element present
2. What are the uses of writing molecular formula?
3. Classify the following into elements, compounds and mixtures.
Water, Air, Lead, Sugar, Salt, Mercury and Helium
4. Write the molecular formula for the following
a) Sulphuric acid
b) Hydrochloric acid
5. How does the atom of an element differ from the atom of a compound?
Lesson – 4
Metals and Non-Metals
I. Fill in the blanks:- (1m)
1. An example for liquid metal is _________.
2. An example for liquid non-metal is ___________.
3. An example of a non-metal is __________.
4. An example of metalloid is _____________.
5. An example of inert gas is _____________.
6. Metals are good ___________ of electricity.
7. Property by which a metal can be drawn into thin sheet is called _______________.
8. Property by which a metal can be drawn into thin wires is called _______________.
9. The hardest non-metal is ___________.
10. Metalloids are __________ in nature.
II. Answer the following:- (1m)
1. Name two metals
2. Name two non-metals
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3. Name two metalloids
4. What is the metals which produce ringing sound called?
5. How much is the conductivity of a metalloid?
III. Answer the following:- (2m)
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2.
3.
4.
What is malleability? Give two examples of malleable elements?
What is ductility? Give two examples of ductile elements?
Why are germanium and boron classified as metalloids?
What are inert gases? Give two examples
IV. Answer the following:- (3m)
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3.
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5.
Graphite is not used to make wires. Why?
Bells are made up of metals. Why?
What is a metal? Give two examples
What is a non-metal? Give two examples
Name the following
a) Metal which changes to salt on reacting with chlorine
b) Metal which changes to rust on reacting with oxygen and water
c) Non-metal, But a good conductor of electricity
V. Answer the following:- (4m)
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What are metalloids? Give two examples
Write any four properties of Metalloids?
Write any four properties of inert gases?
Write any four properties of metals?
Write any four properties of non-metals?
Lesson - 5
Separation Of Substances
I . Fill in the blanks: (1m)
1. ________________ is a mixture of gases.
2. A mixture of mustard & rice flour can be separated by _________________________
3. Sugar dissolved in water can be separated by ______________________
4. Melting point of ice is ____________________
5. Rice is separated from its stalk by ____________________
6. Method used to obtain salt from sea water is ________________________
7. When naphthalene is heated it changes from solid state to _____________ state.
8. Separating substances by breeze or wind is called __________________.
9. Water and sand can be separated by ___________________
10. Pure water is obtained by __________________________ method.
II Answer the following. (1m)
11. Which method is used to separate a mixture of bananas and chillies?
12. Which method can be used to separate oil and water?
13. Which method can be used to separate naphthalene and salt mixture?
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14. Which methods can be used to make muddy tap water clear?
15. How can a mixture of sulphur and iron filings be separated?
III Answer the following. (2m)
16. Define sedimentation.
17. What is distilled water?
18. What is evaporation?
19. What are liquids which do not mix with each other called? How can they be separated?
20. Name the method of separating a mixture of two liquids with different boiling points
21. Give two uses of distilled water.
IV Answer the following:
(3m)
22. What is sublimation? Explain with 2 examples
23. What is threshing? Where is it used?
24. What is winnowing? Where is it used and why?
25. What are the different methods by which undissolved solids can be separated from water?
VAnswer the following:(4m)
26. Explain with a diagram the method of obtaining distilled water.
27. Name four methods of separation of mixtures and explain any two.
Lesson - 6
Conductors & Insulators
I.Fill in the blanks:
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6.
(1m)
Materials which carry electricity are called _________________________
Most commonly used conductor is __________________________
____________________________ is a semi-conductor
____________________________ is an insulator
Air is an _________________________
All metals are _____________________
II. Answer the following:(1m)
7. Why is a metal wire used to carry electricity?
8. How does electricity reach our school and homes?
9. An electric wire is covered by a plastic material. Why?
III. Answer the following(2m)
10. Why does an electrician wear rubber slippers while working?
11. Give 4 examples of conductors?
IV. Answer the following
(3m)
12. What is current electricity? Mention some sources of electricity.
13. What are semi-conductors? Give 2 examples. Where are they generally used?
V. Answer the following
(4m)
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1. Distinguish conductors from insulators.
2. Mention some good ways to use electricity.
Lesson -7
Measuring Devices
I. Fill in the blanks:- (1m)
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2.
3.
4.
The quantity of mater present in a body is its ___________.
Gravity of the earth is __________.
Fruit sellers use ____________________ to weigh fruits.
According to Archimedes principle a body immersed in water suffers apparent loss of
______________.
5. The force of gravity on the mass of a body is called ______________.
6. Spring balance was invented by ______________.
7. Density of water is ___________.
8. A body sinks in water if its density is _________ than the density of water.
9. Property of water to apply an upward force on a body is called ____________.
10. In a laboratory, mass of chemicals is measured with a ____________________.
II. Answer the following: - (2m)
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3.
4.
5.
Anoop is visiting different countries. His luggage weight slightly differs at different places. Why?
Why does a metal pot become lighter when it is immersed completely in water?
What is mass? What is its SI unit?
What is volume? What is its SI unit?
What is buoyancy?
III. Answer the following:- (3m)
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3.
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6.
Distinguish between mass and weight. Mention their SI units.
How does a merchant use a common balance
What makes a ship made of iron float on water?
Mention any three uses of Archimedes principle.
What is specific gravity of a liquid. Write the formula
What is a hydrometer? On what principle does it work?
IV. Answer the following: - (4m)
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2.
3.
4.
5.
Explain density, volume and mass. Express the relation between them in the form of an equation.
Suggest the steps to measure the weight of your lunch box using a spring balance.
Explain the working of a physical balance with a neat and labeled diagram
What is apparent loss in weight? Why does this happen?
What is Archimedes principle?
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Second Semester
Unit - 1
Food
I. Fill in the blanks: (1M)
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2.
3.
4.
5.
The process of utilization of food in body is called _________
________ is an omnivorous animal
Fungus is a ________
Green plants are called ________
Arrangement in which autotrophs and heterotrophs mutually gain from each other is called
________.
6. Food provides _________ for work
7. Carnivorous animals have sharp pointed ________
8. Plants need _______, ________, and _________ for photosynthesis
9. Process of intake of solid food as whole is called ________ nutrition
10. ___________ is a sanguivore
II. Answer the following. (1M)
11. What are organism which get their food from plants called?
12. What are fruit eating organisms called?
13. What are insect eating organisms called?
14. What are the organisms which eat decaying animals called?
15. Why are green plants called autotrophs?
16. How do green plants prepare food?
17. What are omnivores?
18. Name 2 insectivorous plant?
19. Name 2 sanguivores?
20. Name the organization which prepares foods using chemical energy?
III. Answer the following. (2M)
21. What is holophytic nutrition? give examples
22. What is holozoic nutrition? Give an example
23. What are nutrients? Why do we need them?
24. What nutrition?
25. What is the hair like growth seen on stale bread? What types of nutrition is this?
26. What are the materials used by a given plant to prepare its food? Name the process?
IV. Answer the following. (3M)
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27. How do purple bacteria prepare food?
28. Give reasons
a) Green plants are called autotrophs
b) Tiger is a carnivore
c) Round worm is a parasite
29. How are carnivores classified? Explain each one with an example?
30. Why is food essential for our body?
V. Answer the following. (4M)
31. Describe the 5steps by which food is utilized in the body?
32. Write a short paragraph on balance in nature.
Unit – 2
Water
I. Fill in the blanks: (1M)
1. Boiling point of water at sea level is ________
2. Pure water is __________
3. A homogenous mixture of two or more substances is called ________
4. _________ is a universal solvent
5. Positively charged ions are called _________
6. The _________ cycle provides water regularly to the earth
7. The quantity of freshwater available on the earth is _______
8. The scientist who prepared water by burning hydrogen and oxygen is ____________
9. Water is also called __________
10. Water is also made of two elements namely _________ and ________
11. In sodium chloride solution, sodium chloride is ________
12. Atoms with extra positive or negative charges are called are __________
13. Seas and oceans cover _______ of water available on the earth
14. Removal of soil deposited in ponds , river etc is called ________
15. Direct collection and use of rain water is called _______
II. Answer the following. (1M)
16. Why does ice float on water?
17. Why is water called a universal solvent?
18. Why should polluted water be purified before drinking?
19. Why should we conserve the water available on earth?
20. What is a solute? Give an example
21. What is a solvent? Give an example
22. What is the density of water at 4oc
23. What is evaporation?
24. What is condensation?
25. What are the two kinds of ions?
III. Answer in 2-3 lines.(2M)
26. Explain drip irrigation and sprinkler irrigation?
27. What are the main purposes of the ganga-kaveri project?
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28. What is desilting?
29. What is precipitation?
30. What is underground water?
31. Why is a solution of sugar in water called a homogenous mixture?
32. What is meant by conservation of water?
33. What is rainwater harvesting?
34. What do you mean by water scarcity?
35. What is water pollution?
IV. Answer the following. (3M)
36. Explain with an experiment, that pure water is bad conductor of electricity?
37. Explain water cycle?
38. Explain the main causes of water scarcity?
39. How is water pollution caused?
40. What are ions? Explain
41. List some methods of water management?
42. What is rain water harvesting? Explain its types.
V. Answer the following. (4M)
43. Explain the importance of water?
44. List out the properties of water?
45. With a neat labeled diagram explain the experiment to determine the boiling of water?
Unit - 3
Soil
I. Fill in the blanks: (1M)
1. Loses of top soil is called _________
2. Humus content is very low in _______
3. Tree planting is _________
4. Ploughing across the slope is _______ farming.
5. Soil has ________ by which it holds water in it.
6. The top soil contains _________ and _________
7. In the northern plains of India _________ soil is found.
8. Soil is classified depending upon __________ and _________
9. Decomposing organic matter in soil called ________
10. Strong winds and fast flowing water causes ________
II. Answer the following: (1M)
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2.
3.
4.
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6.
What is weathering of rocks?
What is the effect of soil erosion?
What is soil conservation?
What is afforestation?
What is planned grazing?
What is a shelter belt?
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III. Answer the following: (2M)
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8.
Why is soil important?
What is humus?
What is weathering?
What is soil erosion?
What is contour farming?
What is crop rotation?
What is mixed cropping?
What are the 3 types found in laterite soil?
IV. Answer the following: (3M)
1.
2.
3.
4.
5.
How is soil formed?
What is deforestation and what are its causes?
List out some preventive measures to check soil erosion and explain any one of them?
Write a short note on silty soil?
Which soil is suitable for horticultural activities and why?
V. Answer the following: (4M)
1. How does the top soil support plants?
2. Explain the causes of soil erosion?
3. Explain briefly the methods of conservation?
Combustible substance & fire extinguishers
I.
Fill in the blanks:
1. Burning of substances in air is called _______________.
2. An example for a non combustible substance is __________.
3. The substance which support fire is ______________.
4. The most commonly used fire extinguisher is ______________.
5. Early man used this to extinguish fire __________.
6. Phosphorous and sulphur are ______________.
7. _______________ is known as Jalapashana.
8. White phosphorous is always stored in _______________.
9. Fire extinguisher was invented by _________________.
10. Francois carler invented _______________ fire extinguisher.
11. Carbon di oxide cuts off __________ supply around burning substance.
12. The government organization that fights fire is ____________.
13. Phosphorous was discovered by _____________.
14. The main source of phosphorous in nature is _______________.
15. The emission of green glow by white phosphorous called ___________.
16. The method of obtaining sulphur from underground called ___________ method.
17. The allotrope of sulphur which has elastic property is _______________.
18. The use of sulphur to give hardness to rubber is called _____________.
II.
Answer the following: 1Mark
1. Why is white phosphorus always stored in water?
2. Why can plastic sulphur be stretched to any form?
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3. What is vulcanization?
4. Who invented the soda acid fire extinguisher?
5. What is a combustible substance?
III.
Answer the following: 2Mark
1. What is combustion? Give 2 examples of combustion?
2. Why is it necessary to control fire?
3. What is a fire extinguisher?
4. Name 4 different types of fire extinguishers.
5. What is allotropy? Name the allotropic forms of phosphorus.
6. Why is water used to extinguish fire?
IV.
Answer the following: 3 Mark
1. What are the factors required to produce fire?
2. List out three uses of phosphorus.
3. List out three uses of sulphur.
4. Name the allotropes of sulphur. Mention their special feature.
V.
Answer the following: 4 Mark
1. Explain with a diagram, the construction and working of the soda-acid fire extinguisher.
2. List out the differences among the allotropes of phosphorus.
3. Write any 4 properties of Sulphur.
Speed and Velocity
I.
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2.
3.
4.
5.
6.
7.
Fill in the blanks: 1 Mark
Measure of actual path of movement of an object gives _____________.
Measure of shortest distance between two points gives _____________.
Distance travelled in unit time is termed as ______________.
Displacement in unit time is termed as _______________.
S. I unit of speed and velocity is ________________.
S. I unit of displacement is _____________.
S. I unit of time is ______________.
II.
1.
2.
3.
4.
Answer the following: 1 Mark
What is the formula used to calculate speed?
What is the formula used to calculate velocity?
What is displacement?
What is distance travelled?
III.
Answer the following: 2 Mark
1. Define speed. Write its formula.
2. Define velocity. Write its formula.
IV.
Answer the following: 3 Mark
1. A car travels a distance of 30 Km in 1 hour. Calculate its speed in km/hr.
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2. A cyclist travels 10.8 km in 1 hour. Calculate his speed in m/s.
V.
Answer the following: 4 Mark
1. A boy runs a distance of 100m in 12sec. Calculate his speed in km/hr.
2. Differentiate between speed and velocity.
The Earth – A living Planet
I.
1.
2.
3.
4.
5.
Fill in the blanks: 1 Mark
The ____________ of the earth binds the atmosphere around the earth.
The atmosphere burns the _____________ due to friction.
The harmful ultraviolet radiations are filtered by ___________ layer.
The charged particles coming from space are repelled by __________ layer.
The presence of _______and ________ makes life possible on earth.
II.
Answer the following: 1 Mark
1. Which layer of the atmosphere filters harmful ultra violet radiation?
2. Which layer of the atmosphere repels charged particles?
III.
Answer the following: 2 Mark
1. Why is most of the water on the earth in liquid state?
2. What does the atmosphere provide to living beings.
3. What is the reason for the presence of moderate temperature on the earth.
IV.
Answer the following: 3 Mark
1. What is ozone? Mention the role of ozone layer in protecting the life on earth.
2. What are the conditions which has made life possible on earth?
V.
Answer the following: 4 Mark
1. Why do seasonal changes occur on the earth?
ATMOSPHERE
I.
Fill in the blanks: (1m)
1. Weather phenomenon occurs in ____________________.
2. _____________ layer helps to reflect radio signal to the earth.
3. Carbon – di – oxide gas is used in ______________________.
4. Old status and monuments are getting damaged due to ____________.
5. Amount of nitrogen present in the atmosphere is _______.
6. Argon is used in manufacture of ________________.
7. Layer of air around the earth is known as ______________.
8. Ozone layer is present in the ____________ layer of atmosphere.
9. Upper boundary of troposphere is called _____________.
10. Earth’s surface is getting warmer due to ______________.
II.
Answer in one sentence: (1m)
1. Which layer protects us from radiations coming from the sun?
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2.
3.
4.
5.
6.
Which component of air is used by green plants to make their food.
What is the second major component of the atmosphere?
What effect is caused by increase of carbon-di-oxide in the atmosphere?
What are the constituents of air?
What is atmosphere?
III.
Answer in 2 or 3 sentences: (2m)
1. Mention two importance of ozone layer.
2. Name the active and inactive components of air.
3. What problems have been caused by the interference of man in nature?
4. Mention any two uses of nitrogen.
5. Mention any two industrial uses of carbon-di-oxide.
IV.
Answer in brief: (3m)
1. Name the different layers of atmosphere.
2. What is troposphere? What is its importance?
3. Name the different constituents of air and their percentage.
4. Mention any 3 industrial uses of oxygen.
5. Mention any 3 industrial uses of argon.
V.
Answer in detail: (4m)
1. What is greenhouse effect? What can be the adverse effects of greenhouse effect?
2. Explain the causes and effects of greenhouse effect.
NATURAL CALAMITIES
I.
1.
2.
3.
4.
5.
6.
7.
Fill in the blanks: (1m)
Electric discharge between clouds or cloud to ground is called ______________.
Negative charges are attracted towards _____________.
The taller buildings and monuments are protected from lighting and thunder bolt by ____________.
Accumulation of excess of water in the river catchment areas is called __________.
Deforestation causes _____________.
Materials charge up due to ___________.
Rise in earth’s temperature is called ____________________.
II.
Answer in one sentence: (1m)
1. How is spark generated?
2. What is a thunderbold?
3. How are storms and cyclones caused?
III.
Answer in two or three sentences: (2m)
1. What are the effects of flood?
2. What are the two main causes of flood?
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3. What is a thunder?
IV.
Answer in brief: (3m)
1. Explain how natural causes cause flood?
2. How do lack of dams and reservoirs cause flood?
V.
Answer in detail: (4m)
1. Explain how lightings is caused? Why is thunder associated with lighting?
PHASES OF THE MOON
I.
1.
2.
3.
4.
5.
Fill in the blanks: (1m)
The spinning of the moon on its axis is called ______________.
Movement of the moon around the earth is called _____________.
The increasing phase of the visible illuminated area of the moon is called _________.
The decreasing phase of the visible illuminated area of the moon is called _________.
Period of rotation of the moon is ______ days.
II.
1.
2.
3.
4.
5.
Answer in one sentence: (1m)
What is a lunar month?
What are the movements of the moon?
What is revolution of the moon?
What is rotation of the moon?
What is a satellite?
III.
Answer in two or three sentences: (2m)
1. What is waxing period?
2. What is waning period?
3. Is moon a luminous body. If not, why does it shine?
4. What has caused patches to appear on moon’s surface?
IV.
Answer in brief: (3m)
1. Write 3 sentences about the moon.
2. Why do we see different phases of the moon?
3. Why do we have a new moon situation?
V.
Answer in detail: (4m)
1. Name the 8 phases of the moon. Draw them.
ECLIPSES
I.
1.
2.
3.
4.
Fill in the blanks: (1m)
The event of the earth coming between the sun and the moon in line is _________ eclipse.
The event of the moon coming between the sun and the earth in line is _________ eclipse.
A solar eclipse occurs on __________ days.
A lunar eclipse occurs on __________ days.
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5. During the lunar eclipse if the moon appears in penumbra region then, that is a _______ lunar
eclipse.
6. If annular and total solar eclipse are observed from different parts of the earth then that is a
_________ eclipse.
II.
Answer in one sentence: (1m)
1. Which eclipse occurs when the moon is partially covered by earth’s shadow?
2. When does lunar eclipse occur?
3. When does solar eclipse occur?
III.
Answer in two or three sentences: (2m)
1. What is total solar eclipse?
2. What is a hybrid solar eclipse?
3. What are the two types of lunar eclipses?
4. What are the two regions in a shadow?
IV.
Answer in brief: (3m)
1. What is a lunar eclipse?
2. What is a solar eclipse?
V.
Answer in detail: (4m)
1. How many types of solar eclipse are there?