Question

How does tempeture affect the molecules in a solid , liquid and gas

Answer 1

The hotter the temperature the faster the molecules moves, and the colder the temperatures the slower the molecules moves. Hope this helps

Answer 2

Temperature determines if it is a solid, liquid, or gas.

How temperature affects the molecule is, the hotter it is the more fast and loose they will be (gas), the colder it is the more slow and packed together they will be (solid).

So,

If you put water on the stove and heat it up it will turn into a gas. (water vapor)                        If you put water in the freezer, it will turn into a solid. (ice)