chemical and physical changes

Front

A chemical change is

Back

irreversible

Front

What kind of a change is the melting of ice?

Back

Physical Change

Front

What kind of a change is the burning of coal?

Back

Chemical Change

Front

What is a chemical change?

Back

A change of materials into another, new materials.

Front

A physical change is

Back

reversible

Front

Example of a chemical change

Back

Rusting of iron

Front

Example of a physical change

Back

Dissolving sugar in water

Front

What happens to the molecules during a chemical change?

Back

They rearrange to form new substances.

Front

What happens to the molecules during a physical change?

Back

They change form but do not become new substances.

Front

Is cooking an egg a chemical change or a physical change?

Back

Chemical Change