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Worksheets8 Grade First Semester Exam Review 3
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What would proposing an explanation for the changing colors of the sky be an example of?
a)
Conclusion
b)
Experiment
c)
Variable
d)
Hypothesis
2.
The factors that can change in an experiment are called
a)
variables.
b)
hypothesis.
c)
conclusion.
d)
data table.
3.
One useful tool that may help a scientist interpret data by revealing unexpected patterns is a
a)
law.
b)
graph.
c)
theory.
d)
variable.
4.
The factor that may change in response to the manipulated variable is called the
a)
hypothetical variable.
b)
independent variable.
c)
operational variable.
d)
responding variable.
5.
During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the
a)
operational variable.
b)
dependent variable.
c)
manipulated variable.
d)
responding variable.
6.
The tendency of an object to resist change in its motion is known as
a)
mass.
b)
balance.
c)
inertia.
d)
force.
7.
During photosynthesis, plants transform electromagnetic energy from the sun into
a)
chemical energy.
b)
thermal energy.
c)
electrical energy.
d)
kinetic energy.
8.
How do liquid water, ice, and water vapor differ from each other?
a)
They are made of different kinds of atoms.
b)
They are different compounds.
c)
They are different states of matter.
d)
They are made of different kinds of molecules.
9.
What characteristics listed below do photosynthesis and combustion NOT share?
a)
Both are endothermic.
b)
Both involve chemical change.
c)
Both cause changes in matter.
d)
Both change energy from one form to another.
10.
Radio waves, visible light from the sun, infrared "rays" from heat lamps, the waves that heat food in a microwave oven, ultraviolet rays, and X-rays are all considered types of
a)
electrical energy.
b)
electromagnetic energy.
c)
potential energy.
d)
chemical energy.
11.
Soil, a salad, and sugar water are all examples of
a)
mixtures.
b)
atoms.
c)
compounds.
d)
elements.
12.
A place that is empty of all matter is called a(n)
a)
International Space Station.
b)
home.
c)
Eagle.
d)
vacuum.
13.
Small robots that have been used to explore the surface of Mars are called
a)
probes.
b)
aliens.
c)
rovers.
d)
vacuums.
14.
The spacecraft that carried the first astronauts directly to the moon's surface for the first walk was the
a)
Eagle.
b)
Saturn V.
c)
Apollo.
d)
Sputnik I.
15.
Astronauts in orbit feel weightless because
a)
they are falling through space around Earth.
b)
they have negative weight in space.
c)
they have no mass in space.
d)
there is no gravity in space.
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