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Misc. 7th Gr Science Review 2
Test Description: Multiple choice questions reviewing 7th gr Ky core content
Instructions: Answer all questions to get your test result.
1) What is the major cause of variation within a species?
A
photosynthesis
B
extinction
C
asexual reproduction
D
sexual reproduction
2) Animals get energy from the food they eat. What is the original source of this energy?
A
decaying organic matter
B
nitrogen compounds in the soil
C
radiant energy from the sun
D
sugars produced by plants
3) Absolute zero is the temperature at which molecules have no
A
chemical bond energy
B
movement
C
electrons in the outermost energy levels
D
physical properties
4) If one light in a string of lights is taken out and all the lights go out this circuit is a
A
series circuit
B
direct circuit
C
parallel circuit
D
alternate circuit
5) Work is defined as
A
a force acting through a distance
B
the result of equal and opposite forces acting on an object
C
the product of mass and acceleration
D
a push or a pull
6) In which type of electric circuit are there many paths for electrons to flow?
A
alternate
B
series
C
parallel
D
direct
7) Substances change phase when
A
their molecules are separated
B
their molecules are mixed together
C
their molecules lose energy
D
their molecules gain energy
8) The weight of an object is determined by
A
its acceleration
B
its volume
C
the pull of gravity on the object
D
its density
9) High winds are most likely found between
A
two thunderstorms
B
high and low pressure systems sthat are close together
C
cirrus and cumulus clouds
D
mountains and prairies
10) Which statement about cells is NOT true
A
Cells are the basic unit of structure and function in living things
B
Cellks make up living things
C
Cells contain many chemicals
D
Cells are produced from nonliving things
*select an answer for all questions
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