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PHYSICAL SCIENCE REVIEW
Test Description: SCIENCE REVIEW 6-8
Instructions: Answer all questions to get your test result.
1) Which of the following is a renewable resource?
A
Wood
B
Natural gas
C
Uranium
D
Petroleum
2) Which of the following is an example of static electricity?
A
A light switch that is turned on runs a ceiling fan.
B
A magnet sticks to a refrigerator door made of metal.
C
A balloon sticks to a wall after it is rubbed with a piece of wool.
D
A dry-cell battery connected to wires lights up a light bulb.
3) A coal-burning facility is constructed in an area containing several pond ecosystems. How will this human activity most likely affect the pond ecosystems?
A
More nutrients will be available.
B
Water quality will be reduced.
C
Disease will become less common.
D
Organism diversity will increase.
4) Which of the following is an example of potential energy?
A
A battery powering a radio
B
A ball rolling along a sidewalk
C
A glass jar sitting on a shelf
D
A flag waving in the wind
5) Which of these best describes the particle motion taking place as gas is exposed to freezing temperatures?
A
The motion of the particles becomes random.
B
The particles move with more force.
C
The motion of the particles is unchanged.
D
The particles decrease in speed.
6) As the energy needs for Virginia increase, new sources of energy are required to replace or supplement the nonrenewable sources of energy now in use. Two sources of energy that are
A
petroleum and solar power
B
coal and hydropower
C
wind power and solar power
D
natural gas and wind power
7) What is one advantage of using a hydroelectric plant?
A
It has little effect on water flow.
B
It has little effect on wildlife when being constructed.
C
It provides renewable energy to human populations.
D
It is expensive to build.
8) Which of these substances is an element?
A
Steel
B
Sugar
C
Plastic
D
Chlorine
9) A student makes a drawing of a carbon atom. Which of these should the student show in the nucleus of the atom?
A
Electrons
B
Protons
C
Molecules
D
Ions
10) For separate ecosystems to be classified as the same type of biome, they must —
A
be at least one hundred square meters in area
B
have similar organisms and climates
C
have deciduous forests
D
be located along the equator
*select an answer for all questions
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