Heating and Cooling

Front

What is melting?

Back

Melting is when a solid becomes a liquid.

Front

What is freezing?

Back

Freezing is when a liquid becomes a solid.

Front

What does it mean to cool something?

Back

To cool something means to decrease the temperature.

Front

What is a reversible change?

Back

A reversible change is a change that can be undone or changed back to its original form.

Front

What is heating?

Back

Heating is when you increase the temperature of something.

Front

What happens to ice when it melts?

Back

Ice changes from a solid to a liquid when it melts.

Front

What happens to water when it freezes?

Back

Water changes from a liquid to a solid when it freezes.

Front

Can melting and freezing be reversed?

Back

Yes, melting and freezing are reversible changes.

Front

What is an example of a reversible change?

Back

An example of a reversible change is melting ice.

Front

What is an example of an irreversible change?

Back

An example of an irreversible change is baking a cake.