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NCERT ENGLISH-MATTER IN OUR SURROUNDINGS-Exercise
- Give reasons for the following observation: The smell of hot sizzling ...
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- A diver is able to cut through water in a swimming pool. Which propert...
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- What are the characteristics of the particles of matter?
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- The mass per unit volume of a substance is called density. (density =m...
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- (a) Tabulate the differences in the characteristics of states of matte...
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- Give reasons (a) A gas fills completely the vessel in which it is ke...
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- Liquids generally have lower density as compared to solids but you mus...
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- Convert the following temperatures to the celsius scale. (a) 300k (...
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- What is the physical state of water at: a. 250^(@)C b. 100^(@)C?
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- For any substance, why does the temperature remains constant during th...
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- Suggest a method to liquefy atmospheric gases.
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- Why does a desert cooler cool better on a hot dry day?
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- How does the water kept in an earthen pot (mataka) become cool during ...
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- Why does our palm feel cold when we put some acetone or petrol or per...
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- Why are we able to sip hot tea or milk faster from a saucer rather tha...
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- What type of clothes should we wear in summer?
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- Convert the following temperatures to the celsius scale. (a) 293k (...
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- Convert the folowing temperature to the kelvin scale. (a) 25^(@)C (b...
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- Give reason for the following observations. (a) Naphthalene balls d...
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- Arrange the following substances in increasing order of forces of attr...
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