Heating and Cooling

Front

What is melting?

Back

Melting is the process of changing a solid into a liquid by heating it.

Front

What is freezing?

Back

Freezing is the process of changing a liquid into a solid by cooling it.

Front

What is heating?

Back

Heating is the process of increasing the temperature of an object.

Front

What is cooling?

Back

Cooling is the process of decreasing the temperature of an object.

Front

What is a reversible change?

Back

A reversible change is a change that can be undone, such as melting and freezing.

Front

What is a non-reversible change?

Back

A non-reversible change is a change that cannot be undone, such as burning.

Front

What happens to butter when it melts?

Back

When butter melts, it changes from a solid to a liquid.

Front

What happens to ice when it melts?

Back

When ice melts, it changes from a solid to a liquid (water).

Front

What is an example of heating?

Back

An example of heating is using a hairdryer to melt crayons.

Front

What is an example of cooling?

Back

An example of cooling is adding ice to a drink.