8/17/2019 Concepts Physical Science_Quiz Answers_Changes of State

1/2

Changes of State Quiz Answer Key

1. Fog forms when water changes to the _____ state.

liquid

2. rue or false! "atter can change #ac$ and forth #etween any two states of

matter.

true

%. rue or false! Changes of state are chemical changes in matter.

false

&. 'rocesses in(ol(ed in changes of state include

a) e(a*orating.

b) tarnishing.

c) combusting.

d) two of the above

+. he *rocess in which a solid changes directly to a gas is called _____.

su#limation

,. he re(erse of the *rocess in question + is called

a) condensation.

b) vaporization.

c) freezing.

d) de*osition.

1

8/17/2019 Concepts Physical Science_Quiz Answers_Changes of State

2/2

-. rue or false! "atter always a#sor#s energy when it changes state.

false

. Freezing changes matter from a liquid to a/n) _____ state.

solid

0. hich *rocess does not in(ol(e matter in the liquid state

a) melting

b) condensation

c) evaporation

d) su#limation

13. 45*lain the role of energy in changes of state.

he energy of *articles of matter determines the matter6s state. 'articles of a

gas ha(e more energy than *articles of a liquid7 and *articles of a liquid ha(e

more energy than *articles of a solid. herefore7 in order for matter to change

from a solid to a liquid or from a liquid to a gas7 *articles of matter must a#sor#

energy. 8n order for matter to change from a gas to a liquid or from a liquid to a

solid7 *articles of matter must lose energy.

2