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WorksheetsExam Review #2
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following statements is NOT part of the cell theory?
a)
All living things are
composed of cells.
b)
Only animals are
composed of cells.
c)
All cells are
produced from other cells.
d)
Cells are the basic
unit of structure and function in living things.
2.
Which organelles produce most of the energy needed by a cell?
a)
chloroplasts
b)
ribosomes
c)
mitochondria
d)
Golgi bodies
3.
The less mass in a given volume of air, the
a)
greater the air
pressure.
b)
more dense the air.
c)
more the air weighs.
d)
less dense the air.
4.
Winds are caused by differences in
a)
air pressure
b)
precipitation
c)
humidity
d)
turbulence
5.
Cold, dry air affecting the northern United States in winter often comes from
a)
maritime tropical air
masses
b)
continental tropical
air masses
c)
maritime polar air
masses
d)
continental polar air
masses
6.
People who study weather and try to predict it are called
a)
archaeologists
b)
meteorologists
c)
geologists
d)
astronomers.
7.
In what plant cell structure is water stored?
a)
chloroplast
b)
vacuole
c)
Cytoplasm
d)
cell wall
8.
What makes a leaf appear green?
a)
chlorophyll
b)
vascular tissue
c)
accessory pigments
d)
cuticle
9.
Cool air masses tend to
a)
mix easily with warm air masses.
b)
be more dense and flow under warm air masses.
c)
be lifted up by more dense warm air masses
d)
be less dense and flow over warm air masses
10.
Pulling down on a rope to hoist a flag is an example of a machine
a)
multiplying force
b)
changing direction.
c)
multiplying distance
d)
reducing friction
11.
An organism’s habitat must provide all of the following EXCEPT
a)
shelter
b)
food
c)
predators
d)
water
12.
In a food pyramid, which level has the most available energy?
a)
third-level consumer level
b)
primary consumer
level
c)
producer level
d)
secondary consumer
level
13.
The first organism in a food chain is always a(n)
a)
producer
b)
herbivore
c)
consumer
d)
carnivore
14.
If you exert a force of 30 newtons to push a desk 5 meters, how much work do you do on the desk?
a)
35 joules
b)
150 joules
c)
100 joules
d)
25 joules
15.
What do machines do?
a)
decrease work
b)
change force or
distance
c)
increase work
d)
eliminate friction
16.
A ramp is an example of a simple machine called a(n)
a)
wedge
b)
lever
c)
inclined plane
d)
pulley
17.
Approximately what percentage of Earth’s water is fresh water?
a)
97%
b)
71%
c)
30%
d)
3%
18.
Tightness across the surface of water that is caused by polar molecules pulling on each other is called
a)
capillary action
b)
condensation
c)
polar action
d)
surface tension
19.
The total amount of water on Earth
a)
is fairly constant
b)
is increasing
c)
is decreasing
d)
depends on the
weather
20.
Earth’s atmosphere traps energy from the sun, which
a)
allows ozone to form
easily
b)
allows water to exist
as a liquid.
c)
causes meteors to
burn up
d)
allows solar
radiation to penetrate to the surface.
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