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How do we detect the smell of an agarbat...

How do we detect the smell of an agarbatti (incense stick)?

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Give reasons for the following observations (a) The smell of lighted incense stick spreads several metres away. (b) A liquid has a fixed volume but not a fixed shape. (c ) Ice floats over water.

What might happen if you do the experiment without the smoke from the incense stick? Now try it and check if the prediction was correct. What might be happening in the above experiment in the absence of smoke particles?

LAKHMIR SINGH & MANJIT KAUR-MATTER IN OUR SURROUNDINGS -NCERT
  1. How do we detect the smell of an agarbatti (incense stick)?

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  2. Which of the following are matter? Chair, air,love, smell, hate, atmon...

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

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

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  5. CHARACTERISTICS OF PARTICLES OF MATTER

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

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

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  8. Give reasons (a) A gas fills completely the vessel in which it is ke...

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

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  10. Convert the following temperatures to celsius scale : (a) 300 K (...

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

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

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  13. Suggest a method to liquefy atmospheric gases.

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

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

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

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

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

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  19. Convert the following temperatures to the celsius scale. (a) 293k (...

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  20. Convert the folowing temperature to the kelvin scale. (a) 25^(@)C (b...

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  21. Give reason for the following observations. (a) Naphthalene balls d...

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