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Sai Angan

Class-3 Section- Subject- Science

Name- Date-
Uses of Air and Water

Q1. Unscramble the given word and write the answer:

a) Plants need this for photosynthesis.
A C N R O O I D X D E B I

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b) Mountaineers carry it in cylinders while climbing high mountains.
X G N O E Y

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c) It is very important for the plants to live and grow.
A E W R T

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d) It controls burning.
I R T O N G N E

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Q.2. State ‘true’ or ‘false’.

i. Plants need carbon dioxide for breathing. ( )

ii. Oxygen is needed for burning. ( )

iii. Mountaineers carry nitrogen cylinders. ( )

iv. Water is required for photosynthesis. ( )

Q.3. Find out how water is used for building houses. Take help from your parents.

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