Why does a hot glass chimney crack when drop of water falls on it?

Why does the crack of a glass window shine?

Why does the surface enegy increase on dispersion of a large water drop into smaller droplets?

Assertion : No taste sensation is evoded when drop of distilled water is put on human tongue. Reason : Man does not possess taste buds for tasting water.

Why does a place of wood floating on water have no Brownian motion?

Why does oil spread over water when it is poured over water?

Why does BaSO_(4) is not stable in water ?

What is the change in temperature of water when it falls from the top to the bottom in a waterfall?

Why does sugar turn black when concentrated H_2SO_4 is added to it?

Why is it that the instantaneous rate of a reaction does not change when a part of the reacting solution is taken out?