Objective 4:
1. Temperature causes matter to change state (if it warms up, it gets closer to a gas, and if it gets cooler, it gets closer to a solid.)
2. As thermal energy increases, the matter begins to eat up. If it is a solid, it becomes a liquid. If it is a liquid, then it becomes a gas.
3. The temperature of matter stays the same because all of the temperature's energy is being put into the matter because it is changing its' state.
4. A solid melts because of the thermal energy acting on it. It causes the molecules to heat up and to start bouncing around. It basically expands and then melts away.
5. You have to poke holes in potatoes because they have so much water inside of them. When it gets really hot, it turns into steam. If the steam doesn't have a way out, it might explode.... so you poke holes in it to prevent it from exploding.
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