Question

Liquid water changes into a gas?

Answer 1

Answer:

Evaporation

Explanation

Sun derives the water cycle, heats up water in ocean and seas, and then water vapours evaporate to air. As the vapours move upward the cool temperature there causes it to condense into clouds and they fall as precipitate like rain, hailstone etc.

Answer 2

Sure, if you put enough heat into the liquid water.

You can do it in a pot on a stove with fire under it.  Or you can just leave the liquid outside in the sunshine, and the sun will put heat into it and chanhge it to a gas.