What is made of water but if you put it into water it will die?

Its ice I think

Explanation:

Ice, when put in water melts, which is made of water, when in liquid state.

Water, which is in liquid state kept to freeze up, converts into solid state, Ice.

So as the science goes, ice melts in water and converts back to its original state, that is water.

Physical state is what this is, as we know there are mainly three states, solid, liquid and gaseous.

Converting from one to other is a process where one state gets back to its normal (previous) state.

what is the question you are trying to ask here