Science Olympiad Grade 2 Air and Water Worksheet-2

Air & Water

11. We cannot see:

(A) the Sun        (B) air                 (C) the Moon    (D) none of these

12. When sunlight passes through water droplets, a _____is formed in the sky.

(A) rainbow         (B) cloud

(C) fog                        (D) star

Click here for more science worksheets

13. The diagram below illustrates the water cycle.

Which arrow represents the process of evaporation?

(A) 1                    (B) 2                  (C) 3                   (D) 4

14. In summer people like to take watermelon because:

(A) it is very tasty                       (B) it is red in colour

(C) it contains more water         (D) none of these

15. Which of these is NOT a source of drinking water?

(A) tap                        (B) sea water

(C) hand pump         (D) well

16. A storm can:

(A) blow away things                 (B) can uproot plants

(C) can damage electric poles   (D) all of these

17. Which of these is NOT a source of surface water?

(A) Puddle             (B) Well

(C) Pond                    (D) River

18. The process of water vapour cooling down is called:

(A) freezing                                (B) condensation

(C) evaporation                         (D) melting

19. The instrument used to measure rainfall is:

(A) barometer                           (B) wind vane  

(C) raingauge                             (D) thermometer.

20. Observe the figure given below. A boy is blowing air into a beaker filled with water using straw.

We see bubbles due to:

(A) water            (B) air                (C) straw           (D) particles

Answers Keys:

(11)–(B); (12)–(A); (13)–(D); (14)–(C); (15)–(B); (16)–(D); (17)–(B); (18)–(B); (19)–(C); (20)–(A)