Reversible vs Permanent

Which of these is NOT a reversible change?

• Water to Ice
• Juice to Popsicle
• Cookie Dough to Cookie
• Melting Chocolate

What is a reversible change?

• Something you can change back.
• Something you cannot change back.

The change happening in the picture is...

• Irreversible

• Reversible

• Changes

Burning wood is a reversible change.

• True
• False

Baking a cake is an example of:

• a reversible change

• an irreversible change

The ice cream is left outside. It is now a liquid. What has happened?

• The sun made it freeze.

• Someone ate it.

• The sun made it melt.

When a substance changes from a solid to a liquid, this is called...

• Melting

• Evaporation

• Freezing

• Condensation