Physical and Chemical Changes

Front

What happens to a sugar cube in hot water over time?

Back

It will dissolve.

Front

What is an example of melting?

Back

Heating a block of ice until it all turns to water.

Front

True or False: When changing a solid to a liquid, thermal energy is removed for melting.

Back

False.

Front

What is another name for a chemical change?

Back

Chemical reaction.

Front

What is rusting?

Back

A chemical change that occurs when iron reacts with oxygen and moisture.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without changing its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Melting ice.

Front

What happens during evaporation?

Back

Liquid water changes into water vapor (gas).

Front

What is condensation?

Back

The process where water vapor cools and changes back into liquid water.