Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
A ____ is
NOT a mixture. a. | colloid | c. | solution | b. | suspension | d. | compound | | | | |
|
|
|
2.
|
The
scattering of light by colloids is called ____. a. | conservation | c. | The Tyndall effect | b. | air
pollution | d. | suspension | | | | |
|
|
|
3.
|
____ is NOT
a homogeneous mixture. a. | Permanent-press fabric | c. | Vinegar | b. | Gelatin | d. | Glue | | | | |
|
|
|
4.
|
When a log
burns in a fire, ____. a. | mass is gained | c. | a physical change has occurred | b. | mass is
lost | d. | new substances are
formed | | | | |
|
|
|
5.
|
When two or
more substances are combined so each substance can be separated by physical means, the result is
a(n)____. a. | mixture | c. | compound | b. | chemical change | d. | element | | | | |
|
|
|
6.
|
____ is
another name for a homogeneous mixture. a. | Solution | c. | Substance | b. | Liquid | d. | Suspension | | | | |
|
|
|
7.
|
Three
examples of physical change are ____. a. | sawing of wood, crushing a can, and toasting a
marshmallow | b. | freezing of water, evaporation of gasoline, and rusting a
nail | c. | boiling of water,
bursting of a balloon, and crumpling a piece of paper | d. | burning of gasoline,
rotting of an egg, and exploding fireworks | | |
|
|
|
8.
|
The shape of
an apple is a ____. a. | physical change | c. | chemical change | b. | physical
property | d. | chemical
property | | | | |
|
|
|
9.
|
Fog is an
example of a ____. a. | substance | c. | compound | b. | solution | d. | colloid | | | | |
|