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What are fluids?
Explain why solids have fixed shape but liquids and gases do not have fixed shape.
Liquids and gases can be compressed but it is difficult to compress solids. Why?
Explain giving examples the various factors on which rate of evaporation depends.
Why do we see water droplets collected on the outer surface of a glass container, containing ice?
Why is it advisable to use pressure cooker at higher altitudes?
Why do people perspire a lot on a hot humid day?
1 kg cotton and 1 kg sand, which is more denser? Why?
Define latent heat of vaporization.
A balloon when kept in sun, bursts after some time. Why?