Explain how temperature can bring about changes

in the state of matter.

It can melt ice which is a solid form of water, also create ice if temp. is cool enough, create gas if warm enough so basically temp. effects the states of matter by either heating it or cooling it

The phases of matter essentially rely on temperature. When temperature is added (endothermic) or taken away (exothermic), then it's molecular structure (it's atoms) act accordingly. When atoms are heated up, they move faster and farther apart. When they are cooled down, the move less and are more tightly packed together.