Physical and Chemical 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, involving a rearrangement of atoms.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a physical change.

Back

An example of a physical change is water evaporating from the surface of the ocean.

Front

Give an example of a chemical change.

Back

An example of a chemical change is roasting a marshmallow.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens to the chemical composition during a physical change?

Back

The chemical composition remains the same during a physical change.

Front

What happens to the chemical composition during a chemical change?

Back

The chemical composition changes during a chemical change, resulting in new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is cutting a pizza a physical or chemical change?

Back

Cutting a pizza is a physical change.

Front

Is making a paper airplane with your homework a physical or chemical change?

Back

Making a paper airplane with your homework is a physical change.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can include color change, gas production, or the formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is an indicator of a physical change?

Back

An indicator of a physical change can include changes in state, shape, or size without altering the substance's chemical identity.

Tags

NGSS.MS-PS1-4