Physical vs. Chemical Changes Review

Ms. Knight conducted an experiment in which she combined a purple liquid and a gold iiquid. Both liquids were the same temperature and the volume of each was 30 ml. Which TWO observations below show a chemical change?

• The volume of the combined liquids was 60 ml.

• The color of the combined liquids was brown.

• The combined liquids took the shape of their container.

• The odor of the combined liquids smelled different than it did before combining.

Tags

NGSS.MS-PS1-2

Cutting wood is a ______________ change.

Tags

NGSS.MS-PS1-2

Burning wood is a ____________ change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Color Change

• physical

• chemical

Tags

NGSS.MS-PS1-2

Floating

• physical

• chemical

Tags

NGSS.MS-PS2-4

Sinking

• phyisical

• chemical

Tags

NGSS.MS-PS1-2

Precipitate

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Temperature change

• physical

• chemical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Shape change

• physical

• chemical

Tags

NGSS.MS-PS1-2

Gas produced

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5