MCQ Chapter 7 Class 7 Science Curiosity NCERT

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MCQ For All Chapters – Science Curiosity Class 7

Heat Transfer in Nature

1. Why are cooking utensils generally made of metals?

Question 1 of 20

2. What is the process called when heat transfers from a hotter part to a colder part of an object?

Question 2 of 20

3. In Activity 7.1, why does the pin closest to the candle flame fall first?

Question 3 of 20

4. Which material is a poor conductor of heat?

Question 4 of 20

5. Why do woollen clothes keep us warm in winter?

Question 5 of 20

6. In Activity 7.2, why does the paper cup above the candle rise?

Question 6 of 20

7. How is heat primarily transferred in liquids and gases?

Question 7 of 20

8. In Activity 7.3, why does the coloured streak move up and down in the beaker?

Question 8 of 20

9. What causes a sea breeze during the day?

Question 9 of 20

10. How does heat from the Sun reach the Earth?

Question 10 of 20

11. Why are light-coloured clothes preferred in summer?

Question 11 of 20

12. Why are Himalayan house walls made of wood and mud?

Question 12 of 20

13. What happens to a hot utensil kept away from a flame?

Question 13 of 20

14. Why do hollow bricks keep houses cool in summer?

Question 14 of 20

15. In Activity 7.4, which heats faster?

Question 15 of 20

16. What is the movement of cooler air from land to sea at night called?

Question 16 of 20

17. Why does smoke from an incense stick rise?

Question 17 of 20

18. What is the continuous movement of water through evaporation and precipitation?

Question 18 of 20

19. In Activity 7.5, which material allows the fastest water seepage?

Question 19 of 20

20. What is the process of surface water seeping through soil called?

Question 20 of 20


 

MCQ
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Comments

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