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That's nice. We're glad you do. But you're going to have to track them down on your own. None of us what to do all of your homework for you.

I'll be glad to help you understand some sticky point of chemistry, but not to do your homework for you.

Just remember. A chemical change results in new and different chemicals from what you started with, while physical changes do not alter then chemical makeup, only the physical state or appearance.

Ugh im doing that tooo in science blehh im not gonna give u 15 or each but heres some..

Chemical:

dying your hair

tanning

burning somthing

limestone on a cave wall

Physical:

breaking a dish

cutting paper

Chemical variations: Burning something colour variations (Leaves) scent variations ( milk ) and so on.... fairly something that may not reversable actual variations: Breaking a bottle ripping paper etc...

chemical: rust, eggs cooking, wood burning, hairy dying

Physical: freezing, melting, boiling, evaporating, condensation, sublimation, cutting objects

you name it