Why do we sweat more in summer?

Why do we separate mixtures?

Why do we see white color in Newton.s disc, when we rotate it very fast?

Why do we use mercury in thermometers? Can water be used instead of mercury? What are the problems in using it?

Why do we use mercury in thermometers? Can water be used instead of mercury? What are the problems in using it?

Why do we store water in matkas (earthern pots)?

Why don't we use water instead of mercury in Torricelli experiment? If we are ready to do this experiment, what length of tube is needed?

Why do we get dew on the surface of a cold soft drink bottle kept in open air? (AS_1)

Why do people snore?

We sweat during summer and heavy exercise.

Why do we wear cotton clothes in summer?