Physical and Chemical Changes

Front

What is a chemical change?

Back

A change where one or more new substances are created.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is a physical change?

Back

A change that does not create new substances, such as changes in state (solid, liquid, gas).

Tags

NGSS.MS-PS1-4

Front

What is an example of a physical change?

Back

The melting of wax.

Tags

NGSS.MS-PS1-4

Front

What are signs of a chemical change?

Back

Color change, producing heat, light produced, and formation of gas.

Tags

NGSS.MS-PS1-2

Front

Is copper tarnishing a physical or chemical change?

Back

Chemical change.

Tags

NGSS.MS-PS1-2

Front

What are physical properties?

Back

Properties that help us determine if a substance is the same after a change, such as conductivity, freezing point, boiling point, and solubility.

Front

What happens during a chemical change?

Back

The chemical composition of a substance changes, resulting in the formation of new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an example of a chemical change?

Back

Burning wood, which produces ash, smoke, and gases.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition, while chemical changes do.

Tags

NGSS.MS-PS1-1

Front

What is an example of a physical change in matter?

Back

Dissolving sugar in water.