Even though I already did this, I wanted to answer the questions we were supposed to.
Three cool physical changes are:
-Shredding Paper. This would be considered a physical change to me because despite the fact that it is shredded, it is still paper.
-Squishing a Can. I believe that this is a physical change and not a chemical one because you can, if you try really hard, get the can back so its original state, and it is still a can.
- Boiling Water. I would consider this a physical change because boiled water is still water nevertheless.
Three cool chemical changes are:
-Baking a Cake. I consider this one a chemical change because you cannot get the ingredients that you used to bake the cake back.
- Burning Paper. I believe this to be a chemical change because once the paper is burned you cannot get it back.
- Leaving a Nail Outside and Rust Forms. I consider this a chemical reaction rather than a physical one because the rust comes from a chemical reaction that occurs when the nail is exposed to oxygen.
Sincerely,
Alina Amin
Good examples for chemical and physical changes. It looks like you get the concept. For the physical changes I like how at the end of each of them you put how it is still the same thing.
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