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" A stone piece sinks in water , whereas...

" A stone piece sinks in water , whereas a wooden cork floats over it." Explain .

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BHARATI BHAWAN (ENGLISH)-MATTER IN OUR SURROUNDINGS -C. Short Answer Questions
  1. Explain why does food get quickly cooked in a pressure cooker .

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  2. Why does a desert cooler cool better on a hot dry day?

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  3. " A stone piece sinks in water , whereas a wooden cork floats over it....

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  4. Can a solid diffuse into another solid ? Give an example .

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  5. What is the difference between gas and vapour ?

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  6. " The arrangement of particles in the solid state of a substance is m...

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  7. "Both boiling water and steam have the same temperature , but water in...

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  8. Describe an activity to show that a liquid when left exposed to air di...

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  9. Describe an activity to show that different liquids evaporate at diff...

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  10. What is latent heat of fusion? State its units.

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  11. The following materials are supplied to you: (i) Glass (ii) Ice pieces...

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  12. What will you observe when cotton wool is taken in place of a gas or l...

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  13. What are the characteristics of a liquid ?

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  14. Why are gases lighter than solids and liquids ?

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  15. What type of clothes should we wear in summer?

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  16. Explain the role of temperature and pressure during the liquefaction ...

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  17. Describe an activity to show that the rate of diffusion in a liquid in...

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  18. Rana was in a haste to go to attend a marriage party , but he found t...

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  19. Why does the temperature of a substance remain constant during its mel...

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  20. Give reasons for the People prefer to wear cotton clothes durin...

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