Chemical vs. Physical Changes

In a __________ _________ the substances are not altered chemically but can change from one phase to another or can be combined or separated, but they keep their original properties.

Tags

NGSS.MS-PS1-4

In a ________ ________ the substances are altered chemically to produce a new substance with different properties after the change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical change or chemical change?

Salt dissolving in water.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

Physical change or chemical change?

An iron nail rusting.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

Physical change or chemical change?

Gasoline running a car engine.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

Physical change or chemical change?

Ice melting.

• physical change

• chemical change

Tags

NGSS.MS-PS1-4

Physical change or chemical change?

Hydrogen peroxide can decompose into water and oxygen.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

Physical change or chemical change?

Water turns to steam at 100^o C.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Physical change or chemical change?

Baking cookies.

• physical change

• chemical change

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Physical change or chemical change?

Kool-Aid mixes with water.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2