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