Page 69 - Carvaan Science-2

2. Moving air is called _________________ .

(a) twister (b) storm (c) wind

3. We can fly kite in the _________________ .

(a) wind (b) water vapour (c) smoke

4. We can see small dust particles floating in the _________________ .

(a) house (b) room (c) air

5. The heat of the Sun changes the water into _________________ .

(a) ice (b) vapour (c) water
B. Fill in the blanks with the correct word : Problem Solving

dust particles, Smoke, wind vane, boats

1. Air contains ________________________ .

2. ________________________ makes air impure.

3. A ________________________ is fixed high up on the buildings.

4. Wind helps the ________________________ to move on water.

C. Write (T) for True and (F) for False statements : Decision Making

1. We cannot touch or see the air. ____________

2. Smoke, dust and germs keep the air clean. ____________

3. Germs make us ill. ____________

4. Trees keep the air impure. ____________

5. Breeze moves sail boat on water. ____________

6. We should breathe in the pure air. ____________

D. Match the following: Problem Solving

1. moving air (i) breeze

2. strong wind (ii) not good for health

3. gentle wind (iii) storm

4. direction of wind (iv) wind

5. polluted air (v) wind vane

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