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What are the characteristics of the particles of matter?

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DINESH PUBLICATION-MATTER IN OUR SURROUNDINGS -N.C.E.R.T. IN TEXT PROBLEMS
  1. Which of the following are matter? Chair, air,love, smell, hate, atmon...

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  2. Give reasons for the following observation: The smell of hot sizzling ...

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  3. A diver is able to cut through water in a swimming pool. Which propert...

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  4. What are the characteristics of the particles of matter?

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  5. The mass per unit volume of a substance is called density. (density =m...

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  6. (a) Tabulate the differences in the characteristics of states of matte...

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  7. (a) Tabulate the differences in the characteristics of states of matte...

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  8. Why does a gas fill completely the vessel in which it is kept ?

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  9. A gas exerts pressure on the wall of the container. Assign reason.

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  10. Why should we call a wooden table a solid ?

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  11. Explain why, we can easily move our hand in air but to do the same thr...

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  12. Liquids generally have lower density as compared to solids but you mus...

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  13. Convert the following temperatures to Celsius scale : (a) 300 K (b) 57...

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  14. What is the physical state of water at: a. 250^(@)C b. 100^(@)C ?

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  15. For any substance, why does the temperture remain constant during the ...

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  16. Suggest a method to liquefy atmospheric gases.

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  17. A cooler is quite effective on a hot and dry day. Explain.

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  18. How does the water kept in an earthen pot (mataka) become cool during ...

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  19. Why does our palm feel cold when we put some acetone or petror or per...

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  20. Why are we able to sip hot tea or milk faster from a saucer rather tha...

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