Heating up, mostly. Solid can be heated to liquid, then to gas, then eventually to plasma.
Compound - made out of two or more types of elements chemically combined
Mixture - two or more substances in which the substances retain their identity
Element - simplest form of matter that is present by itself
Answer:
As heat is applied to liquid water, the molecules move faster and the temperature again increases. During the phase change from liquid to gas, the added heat is stored in the molecules as, once again, potential energy, and the temperature remains constant.
Explanation: