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WorksheetsScience Review 2
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What happens when the top predator in an ecosystem is removed?
a)
the number of decomposers increases.
b)
the number of decomposers decreases
c)
the number of prey increases
d)
the number of prey decreases
2.
a rabbit that eats grass is an example of what kind of organism?
a)
producer
b)
carnivore
c)
consumer
d)
decomposer
3.
the two major groupings within the animal kingdom are ________________
a)
bacteria and fungi
b)
vertebrates and invertebrates
c)
arthropods and chordates
d)
mammals and marsupials
4.
what raw materials does a plant need for photosynthesis?
a)
sunlight and water
b)
glucose and water
c)
carbon dioxide and oxygen
d)
water and carbon dioxide
5.
A cotton ball and a bowling ball were dropped from the same height at the same time. If air resistance were not a factor, what would happen?
a)
Both objects would hit the ground at the same time.
b)
Both objects would bounce up
c)
The cotton ball would hit the ground first
d)
the bowling ball would hit the ground first.
6.
Two children climb onto a seesaw that is in the position above. What can an observer conclude if the left side of the seasaw moves down?
a)
One child has more gravity, resulting in unbalanced forces.
b)
Both children have the same mass resulting in balanced forces
c)
The child on the right has more mass resulting in unbalanced forces
d)
the child on the left has more mass resulting in unbalanced forces.
7.
which list contains only renewable sources?
a)
oil, coal, natural gas
b)
coal, wind, solar energy
c)
wind, solar energy, moving water
d)
nuclear energy, fossil fuels geothermal energy
8.
In the water cycle, energy from the Sun is most directly responsisble for which of the following?
a)
condensation into clouds
b)
freezing into ice
c)
precipitation from clouds
d)
evaporation from oceans
9.
Which of the following changes results in a new substance?
a)
change in state
b)
chemical reaction
c)
physical change
d)
change in temperature
10.
How are melting and boiling alike?
a)
Both occur when particle movement speeds up
b)
Both involve an addition of particles
c)
Both describe ways a gas can change
d)
Both involves a loss of heat energy
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