An edible example of a physical change:
Melting ice cream
An edible example of a chemical change:
Seltzer tablet (barely edible)
Candies that fizz or pop when damp
It is important to understand the difference between chemical and physical changes. Some changes are obvious, but there are some basic ideas you should know. Physical changes are usually about physical states of matter.
Chemical changes happen on a molecular level when you have two or more molecules that interact. Chemical changes happen when atomic bonds are broken or created during chemical reactions. Learn more about the difference between chemical and physical changes at Chem4kids.com.
One of the more popular chemistry assignments is a scavenger hunt, where students are asked to identify or bring in items that fit a description. Here are examples of scavenger hunt items shared by Thoughtco.com.