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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
sexual reproduction
B
extinction
C
asexual reproduction
D
photosynthesis
2) Animals get energy from the food they eat. What is the original source of this energy?
A
nitrogen compounds in the soil
B
radiant energy from the sun
C
sugars produced by plants
D
decaying organic matter
3) Absolute zero is the temperature at which molecules have no
A
electrons in the outermost energy levels
B
physical properties
C
chemical bond energy
D
movement
4) If one light in a string of lights is taken out and all the lights go out this circuit is a
A
direct circuit
B
series circuit
C
alternate circuit
D
parallel circuit
5) Work is defined as
A
the product of mass and acceleration
B
a force acting through a distance
C
a push or a pull
D
the result of equal and opposite forces acting on an object
6) In which type of electric circuit are there many paths for electrons to flow?
A
alternate
B
series
C
direct
D
parallel
7) Substances change phase when
A
their molecules gain energy
B
their molecules lose energy
C
their molecules are separated
D
their molecules are mixed together
8) The weight of an object is determined by
A
its density
B
the pull of gravity on the object
C
its volume
D
its acceleration
9) High winds are most likely found between
A
high and low pressure systems sthat are close together
B
cirrus and cumulus clouds
C
two thunderstorms
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
Cells contain many chemicals
C
Cellks make up living things
D
Cells are produced from nonliving things
*select an answer for all questions
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