CBSE Class 6 Science Sample Paper Set 3

SECTION-A

(Multiple choice questions i to xv carry 1 mark each)

Q I. Choose the correct answer. (1x15 = 15)

i. __________ is a living thing.

a) air b) plough c) mushroom d) radio

ii. Trees with needle like leave are found in ___________ habitat.

a) aquatic b) mountain c) grassland d) coastal.

iii. The objects that allow light to pass through them completely are called______

a) Transparent b) translucent c) opaque d) none

iv. The gas present in largest amount in the atmosphere is _____

a) Oxygen b) Nitrogen c) carbon dioxide d) hydrogen

v. _____________ is a synthetic fibre.

a) Nylon b) cotton c) silk d) wool

vi. Electricity can pass through a/an __________

a) Eraser b) matchstick c) glass bangle d) key

vii. Magnetite is a natural rock which contains ______

a) Iron b) copper c) aluminum d) sand

viii. _________ cannot be thrown in a blue bin.

a) Plastics b) food items c) metals d) glass

ix. The thin wire that glows in a bulb is called _________

a) Switch b) filament c) terminal d) copper

x. Magnets lose their properties if they are _________

a) Heated b) dropped c) hammered d) all the above.

xi. Plants consume_________ for photosynthesis..

a) carbon dioxide b) oxygen c) carbon monoxide d) nitrogen

xii. Cotton wool is obtained from the _________ of cotton plant.

a) Stem b) fruit c) leaf d) root

xiii. _________ is a device used to break or complete an electric circuit.

a) Switch b) bulb c) plug d) electric socket

xiv. Two similar polls of a magnet ________ each other.

a) attract b) repel c) never attract d) never repel

xv. Excessive rainfall causes __________.

a) draught b) chlorosis c) Flood d) all the above

SECTION-B

(Answer Questions 2 to 12 briefly and each carries 2 marks)

2. A Bar magnet has no marking to indicate its poles. How would you find out near which end is its north pole located?

3. Mountaineers carry oxygen cylinders with them. Why?

4. List any two characteristics of living things.

5. To clean spectacles people often breathe out on glasses to make them wet. Explain why glasses become wet.

6. What is rainwater harvesting? Name one technique of harvesting rainwater.

7. Aquatic plants which are totally submerged in water have highly divided or ribbon like leaves. Why?

8. Why should an electrician use rubber gloves while repairing an electric switch? Explain.

9. Differentiate between weaving & knitting.

10. What are the biotic and abiotic components of a habitat? Give examples.

11. Explain the process of making yarns from fibres.

12. Why dried leaves and husk should not be burnt after harvesting? Suggest an alternative for this practice.

SECTION-C

(Answer Questions 13 to 23 and each carries 3 marks)

13. Prove that air supports burning with the help of an activity.

14. Explain why speed is important in a grassland habitat?

15. List three things required for the formation of a shadow.

16. How are clouds formed?

17. What are insulators? Give two examples. Write any one use of insulator.

18. Light travels in a straight line. Explain with the help of an activity.

19. Do you think it is better to use compost instead of fertilizer? Why?

20. How is jute obtained from the jute plant?

21. How do plants and animals help each other in exchange of gases in the atmosphere?

22. Name the device with a magnetized needle used to detect directions. How is it used to find directions?

23. State for each of the following whether it is due to evaporation or condensation.

a) Black board dries up after wiping.

b) Steam rising from a hot Tawa when water is sprinkled on it.

c) Water drops appear on the outer surface of a glass containing ice.

d) Steam rising from wet clothes while they are ironed.

e) Fog appearing on the cold morning.

f) Dew on the grass in the morning.

SECTION - D

(Answer Questions 24 to 28 and each carries 4 marks)

24. A) What are the adaptations found in cactus plant (any two).

      B) Draw the cactus plant and label stem and spines.

25. A) How does an electric cell produce electricity?

     B) What is the direction of current in an electric circuit?

    C) Draw an electric circuit to show that the bulb is glowing and label the cell and the bulb.

26. A) What are magnetic materials? Give two examples.

     B) You are given iron strip. How will you make it into a magnet?

27. A) Mention any two harmful effects of plastics.

     B) Suggest two methods to minimize the over use of plastics.

28. A) Name a shape which forms a circular shadow if held in one way and a rectangular shadow if held in another way. Draw this shape and its two different shadows.

     B) Why can’t you see your reflection in the mirror in a completely dark room?

Please click the below link to access CBSE Class 6 Science Sample Paper Set 3