Match Column I with Column II. There can be more than one match.

Column I Column II

(a) On heating air (p) Descends

(b) On cooling air (q) Expands

(r) Contracts

(s) Rises

Important Questions on Wind, Storm and Cyclone

EASY

7th CBSE

IMPORTANT

NCERT Exemplar Science - Class 7>Chapter 8 - Wind, Storm and Cyclone>SHORT ANSWER QUESTIONS>Q 17

Paheli kept an empty bottle made of plastic inside a refrigerator. After a few hours, when she opened the refrigerator she found the bottle had collapsed. Explain the possible reason.

EASY

7th CBSE

IMPORTANT

NCERT Exemplar Science - Class 7>Chapter 8 - Wind, Storm and Cyclone>SHORT ANSWER QUESTIONS>Q 18

When strong/high speed wind blows, an umbrella held upright at times gets upturned. Explain the reason.

EASY

7th CBSE

IMPORTANT

NCERT Exemplar Science - Class 7>Chapter 8 - Wind, Storm and Cyclone>SHORT ANSWER QUESTIONS>Q 19

Suggest some precautions to be taken to prevent the roof of a tin sheet from flying away during a fierce windstorm.

EASY

7th CBSE

IMPORTANT

NCERT Exemplar Science - Class 7>Chapter 8 - Wind, Storm and Cyclone>LONG ANSWER QUESTIONS>Q 20

Describe an activity to demonstrate that warm air is lighter than cool air.

MEDIUM

7th CBSE

IMPORTANT

NCERT Exemplar Science - Class 7>Chapter 8 - Wind, Storm and Cyclone>LONG ANSWER QUESTIONS>Q 21

The picture below shows a tree line along the sea coast on an island near the equator. As shown, the treetops are permanently bent in one direction. Are the trees bent towards the sea or away from it? Explain.
Question Image