Physical and Chemical Changes – Worksheet
Part A: Act It Out! (Role Play)
Your teacher will give each member of your group a change to act out. Perform it without
saying words, your group members will guess if it is a physical or chemical change.
Part B: Sort the Changes Challenge
Below is a list of everyday changes. Are they Physical Changes or Chemical Changes? Fill out
the table.
Change
Type of Change
Physical or Chemical?
Boiling water
Dissolving sugar in tea
Burning wood
Cooking an egg
Evaporation of perfume
Digesting food
Shattering glass
Baking a cake
Part C: Investigation – The Candle
Watch the video of a candle burning. Answer the questions below in complete sentences:
1. What happens to the wax when it melts? Physical or chemical?
2. What happens when the wick burns? Physical or chemical?
3. Can one object undergo both changes at the same time? Explain.
Here are some examples you may act out:


Physical Changes:

Folding a piece of paper (mime folding)

Cutting paper (mime scissors cutting)

Melting ice (slouch down like you are 'melting')

Stretching a rubber band (pretend pulling something stretchy)

Crushing a can (mime squashing something in your hands)
Chemical Changes:

Baking a cake (stirring bowl, oven, then 'tasting')

Rusting (act like a robot slowly rusting and stiffening)

Fireworks (arms spreading out 'boom!')

Cooking an egg (crack egg, stir in pan, flip it)

Burning wood (sit up then slowly collapse into 'ash')