BC: Broken plastic is a physical change because even though the glass is broken it's still glass, no content was changed.
FC: Physical And Chemical Changes Morgan Winkelmann 7th Period- Hebert
1: Chemical Changes!
2: Photosynthesis is a chemical change because it changes carbon dioxide and water into glucose and oxygen, which means the content, was changed.
3: Rusted metal is a chemical change because it's altering the metals composition.
4: Rotting fruit is a chemical change because once the fruit is rotten you can't change it back to the original substance.
5: Burning wood is a chemical change because as the wood is burning the composition is changing.
6: Fireworks are a chemical change because when the fireworks explodes it's a new substance.
7: Digesting food is a chemical change because the composition of the food is being changed by the acids in your stomach can't be changed back.
8: Physical Changes!
9: A towel absorbing water is a physical change because the water is not changing the towel into anything different.
10: Inflating a balloon is a physical change because all it's doing is adding air to the inside of the balloon, no change in substance is occurring.
11: Ripping tin foil is a physical change because you are only changing its shape, not its content.
12: Crumbled paper is a physical change because the paper is still paper it's just not smooth anymore.
13: Melted ice is a physical changed because even though it's changing into a different form it's still water.