Physical and Chemical Changes

Front

What is a chemical change?

Back

A chemical change creates a new substance and cannot be undone.

Front

What describes a chemical change most accurately?

Back

A change on the molecular level.

Front

What happens when a tire is inflated?

Back

It is a physical change.

Front

Which of the following is NOT an example of a chemical change?

Back

Breaking a pencil.

Front

Is inflating a tire a physical or chemical change?

Back

Physical change.

Front

What is a physical change?

Back

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

Front

Give an example of a chemical change.

Back

Burning wood.

Front

What happens to the molecules during a chemical change?

Back

The molecules rearrange to form new substances.

Front

What is rusting an example of?

Back

A chemical change.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not create a new substance, while a chemical change does.