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Worksheets

8th Grade Review

Total questions: 142

Worksheet time: 3hrs 30mins

Name
Class
Date
1.
What is the center of our solar system?
a)
moon
b)
earth
c)
sun
d)
Jupiter
2.
What is the definition of orbit?
a)
the spinning of the earth on its axis
b)
when the lit part of the moon increases
c)
all of the planets, moon, and other space objects going around the sun
d)
the imaginary line that goes through the north and south poles that the earth spins on
3.
Which one takes 24 hours?
a)
rotation
b)
revolution
4.
What causes day and night?
a)
rotation
b)
revolution
5.
What is energy created by the sun called?
a)
sun energy
b)
hot energy
c)
solar energy
d)
solar heat
6.
What is the sun?
a)
a star
b)
a comet
c)
a planet
d)
an asteroid
7.
How does the moon get its light?
a)
it reflects the sun's light onto the earth
b)
it creates its own light, similar to a star
c)
it gathers light from earth during the day
d)
the moon is actually a yellow color, so it appears to be bright during the nighttime
8.
What is the definition of orbit?
a)
the spinning of the earth on its axis
b)
when the lit part of the moon increases
c)
all of the planets, moon, and other space objects going around the sun
d)
the imaginary line that goes through the north and south poles that the earth spins on
9.

This is the first planet from the Sun; it is very hot in the day and very cold in the night.

a)

Mercury

b)

Neptune

c)

Earth

d)

Jupiter

10.

What are large chunks of rocks and metal in space?

a)

Earth

b)

comet

c)

asteroids

d)

gibbous

11.

The fourth planet from the Sun; also known as the "red planet."

a)

Neptune

b)

Mercury

c)

Earth

d)

Mars

12.

The sixth planet from the Sun; known for its large rings.

a)

Saturn

b)

Mercury

c)

Earth

d)

Mars

13.

This is the eighth (last) planet from the Sun; it is deep dark blue in color.

a)

Earth

b)

Neptune

c)

Mercury

d)

Jupiter

14.

These are the 4 planets (Mercury, Venus, Earth, Mars) are known as

a)

terrestrial planets

b)

gas giants

c)

dwarf planets

d)

solar planets

15.

These are the four planets the Sun; Jupiter, Saturn, Uranus, and Neptune are classified as

a)

terrestrial planets

b)

gas giants

c)

solar planets

d)

the best planets

16.

Where is the Asteroid Belt located in the Solar System?

a)

near Neptune

b)

between Mercury and Venus

c)

between Mars and Jupiter

d)

around the Sun

17.
Besides Pluto, which planet is the furthest planet from the sun?
a)
Mercury
b)
Earth
c)
Neptune
d)
Uranus
18.
What is similar about all of the inner planets?
a)
rocky
b)
gasses
c)
many moons
d)
takes a long time to revolve around the sun
19.
What is similar about all of the Outer Planets?
a)
small
b)
large
c)
few moons
d)
takes a short amount of time to go around the sun
20.
Which planet is the largest?
a)
Jupiter
b)
Saturn
c)
Neptune
d)
Uranus
21.
Besides Pluto, which planet is the smallest?
a)
Mercury
b)
Venus
c)
Earth 
d)
Mars
22.

The "Great Red Spot" is a storm on which planet?

a)

Earth

b)

Mars

c)

Jupiter

d)

Saturn

23.

Which planet rotates on its side?

a)

Venus

b)

Earth

c)

Saturn

d)

Uranus

24.

How many moons does Earth have?

a)

1

b)

2

c)

3

d)

4

25.

What is the name of this planet?

a)

EARTH

b)

MERCURY

c)

MARS

d)

VENUS

26.

It's a big star that give us light.

a)

SUN

b)

MERCURY

c)

MARS

d)

VENUS

27.

The name of our galaxy is...

a)

The Farm

b)

Galaxy War

c)

The Universe

d)

Milky Way

28.

How many planets does the solar system have?

a)

1

b)

9

c)

5

d)

8

29.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
30.
A cat sitting on couch, a pencil on desk and a car at rest are all example of..
a)
Balanced Force
b)
Unbalanced Force
31.
A car speeding up, a dog slowing down and person turning around the block are examples of..
a)
Balanced Forces
b)
Unbalanced Forces
32.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
33.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
34.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
35.
Newton's _____ Law of Motion means that for every force there is a reaction force that is equal in size, but opposite in direction.
a)
First
b)
Second
c)
Third
d)
Fourth
36.
Forces do not occur in pairs.
a)
True
b)
False
37.
The ____ of an object is the force of gravity on the object.
a)
mass
b)
weight
c)
volume
d)
density
38.
The ____ of an object is a fundamental measure of the amount of matter in the object.
a)
mass
b)
weight
c)
volume
d)
dimension
39.
Who was the scientist who gave us the Laws of Motion?
a)
Sir Isaac Newton
b)
Albert Einstein
c)
Galileo Galilei
d)
Aristotle
40.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
41.
A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...
a)
Less than 1, 000 N
b)
1,000 N
c)
More than 1,000 N
42.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
43.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
44.

A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the REACTION force?

a)

Swimmer pushes on the water

b)

the water pushes on the hand and the swimmer moves forward

45.

A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the ACTION force?

a)

Swimmer pushes on the water

b)

the water pushes on the hand and the swimmer moves forward

46.

A bowling ball hits the pins and the pins fall over. What is the ACTION force?

a)

Bowling ball hitting pins

b)

Pins falling over

47.

The swimmer pushes off of the wall of the pool and moves forward. What is the ACTION in this example?

a)

Swimmer pushes off the wall of the pool

b)

Swimmer moves forward

48.

If you apply MORE force to the ground what happens to the ground pushing on you?

a)

The force remains the same

b)

The force increases

c)

The force decreases

49.

If the gymnast decreases the force they exerts on the trampoline, what will the reaction be?

a)

The gymnast will be pushed back by the trampoline with more force and go higher into the air

b)

The gymnast will be pushed back by the trampoline with less force and not go as high into the air

c)

No change will happen to the gymnast

50.

The baseball player wants to hit a homerun. What does he have to do to the force they exert on the ball?

a)

The baseball player will need to apply more force to the bat swinging at the ball

b)

The baseball player will need to apply less force to the bat swinging at the ball

c)

The baseball player should change nothing about his swing

51.

Katniss Everdeen applies 20 N of force back on her bow. What happens to the arrow when she lets go?

a)

The arrow goes backwards

b)

The arrow goes forwards with 20 N

c)

The arrow goes forwards with 30 N

d)

The arrow goes forwards with 0 N

52.

Bouncing a basketball down with 15 N

a)

Action force example

b)

Reaction Force Example

53.

The ground pushing up on the basketball with 15 N

a)

Reaction force example

b)

Action force example

54.
How often a wave occurs is the wave's __________________
a)
crest
b)
frequency
c)
wavelength
d)
resting point
55.
The distance between 2 corresponding parts of a wave  (example- crest to crest) is its _____________________
a)
trough
b)
frequency
c)
amplitude
d)
wavelength
56.
What are the highest parts of a transverse wave called?
a)
amplitude
b)
trough
c)
resting point
d)
crest
57.
What number represents the wavelength?
a)
1
b)
2
c)
3
d)
4
58.
As the frequency of a wave increases, the __________________ decreases.
a)
amplitude
b)
resting point
c)
wavelength
d)
crest
59.
What number represents the amplitude?
a)
1
b)
2
c)
3
d)
4
60.
Waves move ___ through vibrations
a)
Energy
b)
Matter
c)
Mass
d)
Weight
61.
What is the wavelength?
a)
Length
b)
Height
c)
# of waves
62.
What is the amplitude?
a)
length
b)
height
c)
# of waves
63.
Which is the wavelength?
a)
1
b)
2
c)
3
d)
4
64.
If the frequency gets higher, the wavelength gets 
a)
longer
b)
shorter
65.
The pitch of the sound depends on
a)
frequency
b)
amplitude
c)
wavelength
66.
Which EM wave has the lowest frequency?
a)
radio
b)
xray
c)
gamma
d)
infrared
67.
Which EM wave has the longest wavelength?
a)
light
b)
radio
c)
ultraviolet
d)
red
68.
Is refracting light bending or bouncing?
a)
bending
b)
bouncing
69.
Rainbows are ______ light.
a)
Refracting
b)
Reflecting
c)
Diffracting
d)
Absorbing
70.
Which color has the lowest frequency?
a)
red
b)
green
c)
blue
d)
violet
71.
Which color has the highest frequency?
a)
blue
b)
yellow
c)
orange
d)
violet
72.
Which travels faster, light or sound?
a)
light
b)
sound
73.
What is the bottom of a wave?
a)
trough
b)
crest
74.
What is the height of a wave?
a)
amplitude
b)
wavelength
75.
A wave is a disturbance that transfers:
a)
matter
b)
energy
76.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
77.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
78.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
79.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air. 
d)
glass.
80.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
81.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
82.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
83.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
84.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
85.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
86.
which material does sound travel the fastest?
a)
solid 
b)
liquid 
c)
gases
87.
When a wave strikes and object and bounces off. (example echo)
a)
medium
b)
refraction
c)
reflection
d)
interference
88.
When a wave bends as it passes through at an angle from one medium to another.(example: pencil in a glass of water-)
a)
medium
b)
refraction
c)
reflection
d)
interference
89.

What happens when a beam of light hits an object?

a)

The light passes through it

b)

All the light is absorbed

c)

A shadow forms

d)

All the light is reflected

90.

What happens when light hits a shiny or smooth surface?

a)

It disappears.

b)

It is refracted.

c)

It is absorbed.

d)

It is reflected.

91.

What is it called when light bends as it moves from one substance to another?

a)

Absorption

b)

Reflection

c)

Refraction

d)

Incidence

92.

When you look into a mirror, what is happening to the light?

a)

It is increasing in wavelengths.

b)

It is being refracted.

c)

It is being absorbed.

d)

It is being reflected.

93.

When light hits an area and bounces back it is called:

a)

echo

b)

refraction

c)

reflection

d)

absorbing

94.

Which would you rather walk on barefoot if the sun is out all day long?

a)

grass

b)

black top

c)

sand at the beach

d)

concrete sidewalk

95.

Light travels through air, water, glass and many other materials. What path does it travel to get from one place to another?

a)

sideways

b)

back and forth

c)

straight

d)

up and down

96.

When light goes from one material(medium) to another it becomes bent, what term means bent?

a)

reflected

b)

refracted

c)

absorbed

d)

turned

97.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

98.

What is the best explanation for Mickey seeing himself in the mirror?

a)

refraction

b)

absorbed

c)

reflection

d)

flipped

99.

An opaque object taking in light is called...

a)

a rainbow

b)

dark colors

c)

refraction

d)

absorption

100.

Light is a form of energy that creates...

a)

water

b)

heat

c)

shade

d)

matter

101.

Light travels in a _________ line.

a)

wavy

b)

curved

c)

straight

d)

low

102.

If a black and hot car were in the parking lot together, which car would be hotter?

a)

They would be the same.

b)

The black car would be hotter.

c)

The white car would be hotter.

d)

The black car would be cooler.

103.

What does the picture show about light?

a)

reflection

b)

absorption

c)

refraction

d)

light

104.

Light absorbs easily into dark surfaces. Which object would absorb the most light?

a)

black t-shirt

b)

paper

c)

window

d)

tree

105.
Which of these sources is used for generating electricity that is NOT renewable?
a)
coal
b)
the Sun
c)
wind
d)
water
106.
Which of the following is NOT a fossil fuel?
a)
coal
b)
minerals
c)
natural gas
d)
oil
107.
Which of the following is true about coal?
a)
It is renewable because it is deep inside Earth.
b)
It is renewable because it can easily be replaced as it is used.
c)
It is nonrenewable because it cannot be replaced as fast as people use it.
d)
It is nonrenewable because it fuels many power plants that make electricity.
108.
Which of the following resources is collected by the panels on the roof of his home?
a)
air
b)
water
c)
wind
d)
sunlight
109.
What is the source of energy that causes the blades of a turbine to move?
a)
coal
b)
wind
c)
water
d)
sunlight
110.
Which of the following is NOT a way that people can be harmful to the environment?
a)
burning coal for energy
b)
clearing land for homes
c)
making products from wood
d)
planting trees in a forest
111.
Which of the following is NOT a way that people can be harmful to the environment?
a)
driving cars and trucks
b)
dumping factory wastes
c)
creating oil spills
d)
using solar energy
112.
A Fossil Fuel is
a)
Materials that are found on Earth that people use
b)
Rock that contains metal 
c)
Fuels that formed years ago from the remains of things that lived millions of years ago.
d)
Resources that cannot be replaced quickly enough to keep from running out. 
113.
Natural Resources are
a)
Materials that are found on Earth that people use. 
b)
Rocks that contain metal
c)
Resources that are continually being replaced and will not run out.
d)
Resources that cannot be replaced quickly enough to keep from running out. 
114.
Renewable resources are:
a)
Materials that are found on Earth that people use
b)
Rock that contains metal 
c)
Fuels that formed from the remains of things that lived millions of years ago.
d)
Resources that are constantly being replaced and will not run out. 
115.
Which is a Natural Resource
a)
Sunlight
b)
Computers
c)
Cars
d)
Roofs
116.
Which is NOT a natural resource
a)
Car
b)
Corn
c)
Cotton
d)
Dogs
117.
Which is a renewable Resource
a)
Coal
b)
Gasoline
c)
Ore
d)
Crops
118.
Which is a non-renewable resource?
a)
Ore
b)
Sunlight
c)
Water
d)
Crops
119.
Which season is taking place in the Northern Hemisphere in Position 4?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
120.
At position A, which hemisphere would have summer?
a)
Northern hemisphere
b)
Southern hemisphere
121.
What happens when the area in which you live tilts away from the sun?
a)
It is summer.
b)
It is spring.
c)
It is winter.
d)
It is fall.
122.
Why do we experience the changing of the season on the earth?
a)
distance from the sun
b)
rotation of the earth
c)
change in solar output
d)
tilt of the earth's axix
123.
Why is the Equator warmest?
a)
Because it is closest to the sun.
b)
Because it receives the most direct sunlight
c)
Because no clouds form here.
d)
Because it is far from the sun
124.
Which season is taking place in the Southern Hemisphere in Position 1?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
125.
Object orbiting another object. 
a)
revolution 
b)
rotation
126.
One rotation of Earth is equal to
a)
a day.
b)
a year.
127.
What causes day and night?
a)
The earth rotating on its axis
b)
The earth revolving around the sun
c)
The axis' tilting back and forth
d)
The phases of the moon
128.
When it is summer in the Northern Hemisphere, it is _____ in the Southern Hemisphere.
a)
spring
b)
summer
c)
fall
d)
winter
129.
What causes the sun to look like it is rising in the east and setting in the west?
a)
moon's orbit
b)
sun's rotation
c)
Earth's revolution
d)
Earth's rotation
130.
How long does it take earth to make one revolution around the sun?
a)
12 hours
b)
24 hours 
c)
365 days
d)
30 days
131.
When the Northern Hemisphere of Earth is Leaning away from the Sun, What season is the Southern Hemisphere experiencing?
a)
Summer
b)
Winter
c)
Spring
d)
Fall
132.

What is the line running down the center of Earth called?

a)

Equator

b)

Axis

c)

North Pole

d)

South Pole

133.
What causes more heat,  indirect sunlight or direct sunlight?
a)
indirect
b)
direct
134.

Why do we experience the changing of the season on the earth?

a)

distance from the sun

b)

rotation of the earth

c)

change in solar output

d)

tilt of the earth's axis

135.
Which team had more slam dunks, Hawks or Bulls?
a)
Bulls
b)
Hawks
136.
Which team had the fewest number of slam dunks?
a)
Celtics
b)
Grizzlies
c)
Pistons
d)
Bulls
137.
How many more people have purple for a favorite color than red?
a)
3
b)
5
c)
7
d)
9
138.
How many total people took the survey?
a)
50
b)
150
c)
100
d)
200
139.
How many students spent 7 hours doing homework that week?
a)
1
b)
3
c)
5
d)
6
140.
On the coordinate plane, which line is the y-axis?
a)
Horizontal Line (Side to Side)
b)
Vertical Line (Up and Down)
141.
On the coordinate plane, which line is the x-axis?
a)
Horizontal Line (Side to Side)
b)
Vertical Line (Up and Down)
142.
What is meant by the ordered pair (3, 300) ?
a)
In 3 months, I made $300
b)
In 3 months, $300 was raised for the science fair
c)
In 300 months, $3 was made
d)
In 3 months, I made $200

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