Name:
Class:
Date:
Final Review - Identifying Physical and Chemical Changes
Read each question and answer. Use a separate piece of paper if necessary to answer.
1. Label each process as a physical or chemical change:
a. Perfume evaporating on your skin. ___________________
b. Butter melting. ___________________
c. Wood rotting. ___________________
d. Charcoal burning. ___________________
e. Autumn leaves changing color. ___________________
f. A hot glass cracking when placed in cold water. ___________________
g. Pounding gold into jewelry. ___________________
h. Heating sugar to make caramel. ___________________
i. Mixing sugar in water. ___________________
j. Digesting food. ___________________
2. Which of the following would NOT be a physical change?
a. freezing water to make ice cubes
b. melting gold to make jewelry
c. burning gasoline in a lawnmower
d. boiling water for soup
e. tearing a piece of aluminum foil
3. Which of the following is NOT a physical change?
a. grating cheese
b. melting cheese
c. fermenting milk into cheese
d. mixing two cheeses in a bowl
4. Label each process as a physical or chemical change and explain why:
a. Moth balls gradually vaporize in a closet ___________
Reason:
b. Iron rusts ___________
Reason:
5. Label each process ‘P’ for physical change or ‘C’ for chemical change:
Fogging a mirror with your breath _____ Frying chicken _____
A Nail Rusting _____
Ripping up homework _____
Wood Burning _____
Bread molding _____
Mixing water and food coloring _____ Slicing potatoes for fries _____ Mixing sugar & coffee _____
Breaking a bone _____
Mending a broken bone _____ Burning paper _____ 
Dyeing fabric _____

 Exploding fireworks _____ Cooking an egg _____
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6) Choose one physical change and one chemical change from above. Give two (2) reasons why each is
either a physical or chemical change.
Physical change example from above: ________________________________
Why this is a physical change:
1) ________________________________________________
________________________________________________
2) ________________________________________________
________________________________________________
Chemical change example from above: ________________________________
Why this is a chemical change:
1) ________________________________________________
________________________________________________
2) ________________________________________________
________________________________________________