Changes in Matter

Which of the following is a physical change?

• baking a cake

• lighting a match

• tying a shoelace

• burning a candle

After a chemical change has occurred, matter

• has less mass than before.

• is the same substance as before.

• has different chemical properties than before.

• all of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A sign that a chemical change has occurred is a change in

• color.

• shape.

• size.

• all of the above.

Tags

NGSS.MS-PS1-2

An example of a chemical change is

• cutting hair.

• washing hair.

• bleaching hair.

• none of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Matter cannot be created or destroyed according to the law of

• equal matter.

• change in matter.

• conservation of mass.

• volume and mass.

Tags

NGSS.MS-PS1-5

Making ice cubes with tap water is an example of a chemical change.

• False

• True

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

All changes in matter can be reversed.

• False

• True

Melting metal changes it into an entirely different substance.

• False

• True

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The release of gas bubbles is a sign of a chemical change.

• True

• False

Tags

NGSS.MS-PS1-2

After a physical change, matter still has the same chemical properties.

• True

• False