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Middle School Science Review

Total questions: 70

Worksheet time: 51mins

Name
Class
Date
1.
The powerhouse of the cell is the...It converts energy from food into energy the cell can use
a)
Mitochondrion
b)
Golgi body
c)
Nucleus
d)
Ribosomes
2.
ATP is made in the mitochondria. What is ATP?
a)
The Genetic Code
b)
An Infection
c)
A Form of Stored Chemical Energy
d)
An Organelle
3.
What organelle do plants have surrounding their cells that animal cells lack?
a)
Cell Wall
b)
Woody Stems
c)
Sharp thorns
d)
Cell Membrane
4.
In sea-floor spreading, molten material rises from the mantle and erupts
a)
along the edges of all the continents
b)
along mid ocean ridges
c)
in deep ocean trenches
d)
at the north and south poles
5.
The way that heat moves in flowing liquids and gases is called _______.
a)
convection
b)
radiation
c)
conduction
d)
temperature
6.
If an object has particles that are moving very quickly, the object's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
7.
Heat from the sun travels to Earth by _____.
a)
conduction
b)
convection
c)
insulation
d)
radiation
8.
Which is a conductor?
a)
wool sweater
b)
aluminum foil
c)
oven mitt
d)
wooden spoon
9.

What is an abiotic factor?

a)

A living thing (Ex: Water, Soil, etc.)

b)

A Non-living thing (Ex: Grass, Animals, etc.)

c)

A living thing (Ex: Trees, Birds, etc.)

d)

A Non-living thing (Ex: Rocks, Rain, etc.)

10.

What is a Biotic factor?

a)

A living thing (Ex: Water, Soil, etc.)

b)

A living thing (Ex: Trees, Birds, etc.)

c)

A Non-living thing (Ex: Grass, Animals, etc.)

d)

A Non-living thing (Ex: Rocks, Rain, etc.)

11.

What are Moon phases?

a)

The phases of the moon goes through within a month due to it's revolution around Earth.

b)

The phases the moon goes through within a month due to it's rotation around Earth.

c)

The phases the moon goes through within a year due to it's revolution around the Sun.

d)

The phases the moon goes through within a month due to Earth's rotation around it.

12.

What is a Food Chain?

a)

A network of lines that shows one thing an organism eats.

b)

A network of arrows that shows what an organism eats, and what eats that organism.

c)

A network of arrows that shows what organisms eat, and what eats those organisms .

d)

A network of lines that shows multiple things an organism eats.

13.

What moon phase is this?

a)

Full Moon

b)

1st Quarter

c)

3rd Quarter

d)

New Moon

14.

What moon phase is this?

a)

3rd Quarter

b)

Full Moon

c)

1st Quarter

d)

New Moon

15.
A truck driving at 60 miles per hour travels 150 miles. How long is it driving for?
a)
9000 hours
b)
0.4 hours
c)
210 hours
d)
2.5 hours
16.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
17.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
18.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
19.
Imagine you travel to another planet. What will change as you walk around the surface of the planet, your mass or your weight?
a)
Mass
b)
Weight 
c)
Both 
d)
Neither 
20.
These are all examples for forces. Which of these forces must act between objects that are in direct contact with each other?
a)
electricity
b)
magnetism
c)
gravity
d)
friction
21.
Inertia is the tendency of an object to resist a change in its ___________. 
a)
temperature
b)
shape
c)
size
d)
motion
22.
Which metric measurement would be a reasonable estimate for the length of a pencil? 
a)
20 mm
b)
20 cm
c)
20 dm
d)
20 m
23.
Convert 6098.3 centimeters to meters.
a)
60983
b)
609.83
c)
6.0983
d)
60.983
24.
This unit is defined as the distance an object travels per unit of time.  Calulated by dividing distance traveled by time.
a)
Force
b)
Momentum
c)
Speed
d)
Velocity
25.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
26.
Which letter represents wavelength?
a)
A
b)
B
c)
C
d)
D
27.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
28.
True or False. All the cells in an animal look the same and perform similar functions.
a)
True
b)
False
29.
Which organelle is in a plant cell but not in an animal cell?
a)
cytoplasm 
b)
chloroplast 
c)
mitochondrion
d)
cell membrane
30.
This organelle provides extra support for the plant cell and gives in shape.
a)
chlorophyll
b)
chloroplast
c)
cell wall
d)
vacuole
31.
Mountains are formed by the movement of tectonic plates. How long does it take for mountains to form?
a)
about one year
b)
hundreds of years
c)
thousands of years
d)
millions of years
32.
Which rock layer in the diagram seems to be the oldest?
a)
F
b)
E
c)
B
d)
A
33.
What can scientists learn from the sequence of rock layers?
a)
Geologic history of that area
b)
Future geological events
c)
the number of organisms that live in the area
d)
the impact that hikers have had on an area.
34.
Which of the following is the oldest?
a)
Layer L
b)
Intrusion D
c)
Intrusion H
d)
Layer E
35.
About how long does it take the Moon to make one complete cycle around the earth?
a)
24 hours
b)
7 days
c)
365 days
d)
28 days
36.
When the Northern Hemisphere of Earth is tilting away from the Sun, What season is the Southern Hemisphere experiencing?
a)
Summer
b)
Winter
c)
Spring
d)
Fall
37.
What would be the result if the Earth's axis was not tilted but straight up and down?
a)
Nothing would change
b)
There would be no seasons
c)
Days would always be longer
d)
The equator would freeze and the poles would be hot
38.
Which of the following statements is most accurate about the movement of Earth and the Sun?
a)
The Sun revolves around the Earth
b)
The Earth rotates around the Sun
c)
The Earth revolves around the Sun
d)
The Earth rotates while it revolves around the Sun 
39.
Most geologists think that the movement of Earth's plates is caused by ______.
a)
conduction
b)
earthquakes
c)
convection currents in the mantle
d)
Earth's magnetic field.
40.
Which method of investigation would be best for answering the question, "At what time do the squirrels in White Bear like to eat?" 
a)
controlled experiment
b)
build a model
c)
field study
d)
review of research
41.
Which method of investigation would be best for answering the question, "How does the width of a bike tire affect the top speed?" 
a)
controlled experiment
b)
build a model
c)
field study
d)
review of research
42.
The volume of water in a graduated cylinder in 12 mL. A marble is dropped in & the volume raises to 15 mL. What is the volume of the marble?
a)
3 mL
b)
12 mL
c)
15 mL
d)
27 mL
43.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
mass
d)
friction
44.
The density of this material is 2 g/cm3.
There are 24 cm3  Find the total mass.
a)
12 grams
b)
48 grams
c)
12 g/cm3
d)
48 g/cm3
45.
Find the volume of this piece of brass.  
a)
50 g
b)
10 cm
c)
6 cm3
d)
12 cm3
46.
What role in an ecosystem is this organism?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
decomposer
47.
A community of living and nonliving things in their natural environment makes up a(n)_______________
a)
food web
b)
ecosystem
c)
food chain
d)
carbon cycle
48.
What is the independent (changed) variable in this question?
What affect will the shape of the airplane's nose have on the distance it flies?
a)
shape of nose
b)
distance it flies
c)
type of paper
d)
room temperature
49.
What is the first thing scientists do when starting the scientific method?
a)
test their hypothesis
b)
make observations
c)
conduct an experiment
d)
write down their results
50.
What causes winds?
a)
differences in precipitation
b)
differences in humidity
c)
differences in air pressure
51.
The composition of the air is 78% _________.
a)
Oxygen
b)
Argon
c)
Carbon Dioxide
d)
Nitrogen
52.
As you go higher in the troposphere, the temperature _______________.
a)
decreases
b)
increases
c)
stays the same
d)
gets very hot
53.
The shortest wavelength in visible light is______.
a)
violet
b)
red
c)
blue
d)
yellow
54.
This type of electromagnetic wave carries the greatest amount of energy. 
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
55.

What moon phase is this?

a)

Waning Crescent

b)

Waxing Crescent

c)

Waxing Gibbous

d)

Waning Gibbous

56.

What moon phase is this?

a)

1st Quarter

b)

3rd Quarter

c)

Waning Gibbous

d)

Waxing Gibbous

57.
During a storm, the power goes out at Randall's house. His mother strikes a match to light a candle. As the match burns, it gives off light energy.
What other form of energy does the burning match give off?
a)
chemical
b)
electrical
c)
mechanical
d)
thermal
58.
Katie and her family are watching a fireworks display at an outdoor Fourth of July celebration. The fireworks store chemical energy, and when they are set off, they give off two forms of energy: light and which of the following?
a)
electrical
b)
mechanical
c)
solar
d)
sound
59.
Solar power is a technology that relies on a renewable energy resource. Solar power changes energy from the Sun into a form of energy that can be used to heat our homes and run household appliances.  
What form of energy must solar energy be changed into in order to run household appliances?  
a)
chemical
b)
electrical
c)
light
d)
thermal
60.
Fireworks are popular during celebrations. They light up the night sky and sometimes shake the ground with their explosions. The explosion noises are an example of what type of energy?
a)
electrical energy
b)
light energy
c)
mechanical energy
d)
sound energy
61.

Which type of force resists motion?

a)

Friction

b)

Gravity

c)

Pull

d)

Push

62.

How does the mass of an object affect the motion of an object?

a)

The greater the mass the less effect a force will have

b)

The greater the mass the greater the effect a force will have

c)

The less the mass the less effect a force will have

d)

It has no effect

63.

What happens in a game of tug-a-war when both teams pull the rope with equal force and in opposite directions?

a)

The rope does not move

b)

Both teams move to the right

c)

Both teams move to the left

d)

Both teams fall down

64.

A change in position is called . . .

a)

position

b)

frame of reference

c)

reference point

d)

motion

65.

Tells you how the position of an object changes during a certain amount of time

a)

speed

b)

velocity

c)

acceleration

d)

force

66.

You can measure time in . . .

a)

hours (hr)

b)

minutes (min)

c)

seconds (sec)

d)

all of the above

67.

The speed of an object in a particular direction is called . . .

a)

speed

b)

velocity

c)

acceleration

d)

force

68.
What causes 2 magnets to attract?
a)
Both poles are north
b)
They are opposite poles
c)
Both poles are south
d)
There are no poles
69.
What kind of energy does this give off?
a)
light energy
b)
sound energy
c)
heat energy
d)
electrical energy
70.
What is the reason the car travels down the ramp?
a)
the ramp is magnetic
b)
the car has wheels
c)
the force of gravity pulls the car
d)
the car is a very weak magnet

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