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WorksheetsChapter 15 8th Grade Science Putman
Total questions: 14
Worksheet time: 8mins
Name
Class
Date
1.
Three examples of physical change are ____.
a)
boiling of water, bursting of a balloon, and crumpling a piece of paper
b)
burning of gasoline, rotting of an egg, and exploding fireworks
c)
freezing of water, evaporation of gasoline, and rusting a nail
d)
sawing of wood, crushing a can, and toasting a marshmallow
2.
The shape of an apple is a ____.
a)
chemical property
b)
physical change
c)
chemical change
d)
physical property
3.
Fog is an example of a ____.
a)
colloid
b)
compound
c)
solution
d)
substance
4.
When a log burns in a fire, ____.
a)
a physical change has occurred
b)
mass is lost
c)
mass is gained
d)
new substances are formed
5.
____ is another name for a homogeneous mixture.
a)
Solution
b)
Suspension
c)
Substance
d)
Liquid
6.
When two or more substances are combined so each substance can be separated by physical means, the result is a(n)____.
a)
element
b)
compound
c)
chemical change
d)
mixture
7.
A ____ is NOT a mixture.
a)
compound
b)
suspension
c)
colloid
d)
solution
8.
Matter is classified as _____ and mixtures.
a)
homogeneous
b)
heterogeneous
c)
substances
d)
solutes
9.
The scattering of light by colloids is called ____.
a)
homogeneous
b)
suspension
c)
air pollution
d)
The Tyndall effect
10.
A colloid is a ______ mixture.
a)
homogeneous
b)
heterogeneous
c)
hybrid
d)
mass
11.
River deltas, which form as silt and mud settle, are evidence that river water is a _______.
a)
suspension
b)
colloid
c)
mixture
d)
absorbent
12.
____ is NOT a homogeneous mixture.
a)
Permanent-press fabric
b)
Vinegar
c)
Glue
d)
Gelatin
13.
When acid rain falls on limestone, ________ weathering occurs.
a)
mechanical
b)
physical
c)
chemical
d)
biomass
14.
The law that states mass is neither gained nor lost in a chemical change is ____________________.
a)
conservation of momentum
b)
conservation of weight
c)
conservation of chemical
d)
conservation of mass
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