Chemical and Physical Changes

Front

What is a physical change?

Back

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

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, altering the identity of the original substance.

Front

Does a physical change maintain or change the identity of the substance?

Back

A physical change maintains the identity of the substance.

Front

Does a chemical change maintain or change the identity of the substance?

Back

A chemical change changes the identity of the substance.

Front

Give an example of a physical change.

Back

Shattering a glass bottle is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning paper is an example of a chemical change.

Front

What happens to the properties of a substance during a physical change?

Back

The properties of a substance may change, but its chemical composition remains the same.

Front

What happens to the properties of a substance during a chemical change?

Back

The properties of a substance change, and new substances are formed.

Front

Is melting ice a physical or chemical change?

Back

Melting ice is a physical change.

Front

Is rusting of iron a physical or chemical change?

Back

Rusting of iron is a chemical change.