Chemical & Physical Changes
Classify the following changes as Chemical or Physical Changes, and provide a reason for your answer:
Chemical or
Change
Reason
Physical
Cutting your hair
Combining sugar and water
Making a peanut, pretzel and
cereal mixture
Combining baking soda and
vinegar
A piece of metal is bent in half
Burning methanol
Crushing an aspirin into fine
powder
Copper turns green when
exposed to the environment
Baking cookies
Diamonds are used to scratch
glass
Burn a tree to form ashes
Water freezes to form ice
Glass Breaking
Water evaporates into steam
A piece of apple rots on the
ground
A bicycle chain rusts
Chemical & Physical Changes
In the table below, come up with two examples each for a physical change, and a chemical change. Give
examples that have not already been provided.
Physical Change
Chemical Change