200
7. List five physical changes.
8. List five chemical changes.
Physical: Melting, mixing, separating, crushing, tearing, solid to liquid, liquid to gas, evaporating, dissolving, heating (but not cooking/baking/burning), grinding, and sanding.
Chemical: rotting, digesting, rusting, corrosion (from acid or water) burning, baking, cooking, and electrolysis (the separation of water by electric current).