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Earth Science Semester 1 Review

Total questions: 120

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

What do the inner planets have in common?

a)

They are all the same size

b)

They are made of gas.

c)

They rotate at the same speed.

d)

They are all rocky.

2.

The asteroid belt is between what two planets?

a)

Earth and Mars

b)

Mars and Jupiter

c)

Venus and Mars

d)

Jupiter and Saturn

3.

A rocky/metal object in space that orbits the Sun between Mars & Jupiter is called a(n) _______________.

a)

asteroid

b)

comet

c)

meteor

d)

planet

4.

A bright object with a tail, moving slowly across the sky is most likely a _________.

a)

asteroid

b)

comet

c)

meteor

d)

UFO

5.
If its ____ in the Northern hemisphere, then its summer in the Southern hemisphere. 
a)

spring

b)

summer

c)

fall

d)

winter

6.
What causes tides?
a)

gravity

b)

wind

c)

spring

d)

neap

7.
Which generic term is used when one object passes into the shadow of another object?
a)
terminator
b)
eclipse
c)
occlusion
d)
solstice
8.
Why does the area around the equator stay the same temperature all year?
a)
The equator rotates slower than the poles 
b)
The equator remains the same distance from the sun.
c)
The equator always receives direct sunlight.
d)
The equator has 18 hour days.
9.
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.
10.
The energy from the sun is created by a process called:
a)

nuclear fission

b)

nuclear fusion

c)

nuclear reaction

d)

nuclear core

11.
What elements make up most of the sun’s mass?
a)

carbon and oxygen

b)

carbon and hydrogen

c)

helium and nitrogen

d)

hydrogen and helium

12.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
13.
How are galaxies held together.
a)

gas

b)

dust

c)

stars

d)

gravitational attraction

14.
Our Galaxy is called the
a)

M38

b)

Milky Way Galaxy

c)

Andromeda Galaxy

d)

Pinwheel Galaxy

15.

The initial explosion that resulted in the formation and expansion of the universe is called __________________.

a)

the Big Bang

b)

the start of the universe

c)

the beginning

d)

the formation of space

16.

Earth rotates around on an imaginary straight line called___________.

a)

a season

b)

an axis

c)

an equator

d)

an orbit

17.

Due to rotation, only one side of the Earth faces the Sun at a time. This causes...

a)

seasons

b)

climate changes

c)

day and night

d)

months of the year

18.

The Sun is...

a)

a planet

b)

only one planet away from Earth

c)

Earth's moon

d)

a star in the center of our solar system

19.
In order to have more gravity, an object must _________.
a)

have more mass

b)

have less mass

c)

be rocky

d)

orbit the sun

20.
As an object gets closer, its _______will increase.
a)

gravitational pull

b)

temperature

c)

orbit

d)

equinox

21.
A star's color tells you the relative ____________ of the star.
a)

temperature

b)

size

c)

location

d)

luminosity

22.
What affects the force of gravity between two objects?
a)

Their mass and the distance between them

b)

The distance between them

c)

The sum of their masses

d)

The mass of the large object

23.
What is the shape of the Earth's orbit around the sun?
a)

sphere

b)

ellipse

c)

circular

d)

crescent

24.
Luminosity refers to a star's ________.
a)

Brightness

b)

Size

c)

Temperature

d)

Color

25.
Which layer of the sun is the hottest?
a)
Photosphere
b)
Chromosphere
c)
Corona
d)
Core
26.

The life cycle of a star is determined by:

a)

mass

b)

temperature

c)

color

d)

shape

27.

Stars are born in nebulae. Which best describes a nebula?

a)

a collection of gas and dust

b)

a belt of asteroids

c)

a collection of older stars

d)

an empty space

28.

What two measurements are used to classify stars in an HR diagram?

a)

location & distance

b)

size & location

c)

brightness & distance

d)

temperature & brightness

29.

Galaxies are classified according to:

a)

shape

b)

size

c)

color

d)

temperature

30.

What type of galaxy is shown in this image?

a)

Spiral

b)

Irregular

c)

Elliptical

d)

Dwarf

31.

What evidence best proves the expansion and separation of galaxies that has occurred since the theorized Big Bang?

a)

Gravity

b)

Red Shifting

c)

the EM Spectrum

d)

Light Years

32.

How does our star, the Sun, compare to other stars in the Universe?

a)

Cooler than most

b)

Dimmer than most

c)

Brighter than most

d)

Average in every way

33.

Why do planets orbit the Sun?

a)

The Sun is the only celestial object that has a gravitational pull.

b)

The Sun’s chemical composition makes it attract planets.

c)

Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

d)

The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

34.
Which category is our Sun located in?
a)

White Dwarfs

b)

Supergiants

c)

Main Sequence

d)

Giants

35.

Where do comets originate?

a)

Kuiper Belt

b)

Asteroid Belt

c)

The Sun

36.

What is the definition of a dwarf planet?

a)

A dwarf planet is a solar system body that has a spherical shape and an orbit around the Sun that is not cleared of other objects.

b)

A dwarf planet is a small planet that is smaller than Mars.

c)

A dwarf planet is a planet that is further than 2 AU from its orbiting star.

37.

What must happen in order for a satellite to orbit Earth?

a)

The satellite's forward motion must be less than the gravitational pull on it from Earth

b)

The forward motion of the satellite must be balanced by the pull of gravity from Earth

c)

It's not possible for a satellite to orbit Earth

d)

Earth's gravity must be stronger

38.

What is plagiarism?

a)

coming up with your own ideas or way of writing the concept down

b)

putting data in graphical form

c)

using writing or part of the writing of another person as your own

d)

giving credit to others for their work

39.
What is water that flows in rivers and streams into the oceans and lakes?
a)
evaporating
b)
condensing
c)
precipitating
d)
runoff
40.
On which kind of day would you expect the most evaporation from the surface of a pond?
a)
cold, rainy
b)
cold, sunny
c)
warm, rainy
d)
warm, sunny
41.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
42.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
43.
During which stage do clouds form?
a)
condensation
b)
evaporation
c)
precipitation
44.
What amount of the water on the earth is salt water?
a)

25%

b)

72%

c)

97%

d)

100%

45.

Where is most of the freshwater located on Earth?

a)

in the oceans

b)

in polar ice and glaciers

c)

in rivers, streams, and lakes

d)

under the ground

46.
Water beneath the surface of the ground.
a)
Groundwater
b)
Earth
c)
Surface runoff
d)
Reservoire
47.
The process of turning liquid water into vapor (gas).
a)
Evaporation
b)
Water Cycle
c)
Solar Radiation
d)
Clouds
48.
The process by which water on the ground surface enters the soil.
a)
Infiltration
b)
Groundwater
c)
Transpiration
d)
Evaporation
49.
The process in which vapor turns into liquid water. 
a)
Condensation
b)
Evaporation
c)
Snowmelt
d)
Frozen Water
50.
A body of rock underneath the surface of Earth that contains water. (underground lake)
a)
Aquifer
b)
Glacier
c)
Atmosphere
d)
Cloud
51.
The blanket of gases that surround the Earth.
a)
Atmosphere
b)
Solar Radiation
c)
Evaporation
d)
Groundwater
52.
The process where plants absorb water through the roots and then give off water vapor through their leaves.
a)
Transpiration
b)
Respiration
c)
Oxygen
d)
Infiltration
53.
A visible mass of condensed water vapor floating in the atmosphere. 
a)
Cloud
b)
Atmosphere
c)
Rain
d)
Snow
54.
The temperature at which water vapor condenses is the 
a)
relative humidity
b)
humidity
c)
freezing point
d)
dew point
55.
True or False: Solid particles that water vapor condenses on to form a cloud is condensation nuclei
a)
false
b)
true
56.

How are air masses form into clouds? Clouds are form when

a)

cold moist air rises and then cools

b)

warm moist rises, expands and then cools

c)

cold air reaches the lifted condensation level

57.

The temperature at which the air become completely saturated with water vapor is called

a)

humidity

b)

dew point

c)

air density

d)

air pressure

58.

Humidity is the

a)

air density from cold air masses

b)

amount of air pressure in the air.

c)

amount of water vapor present in the air.

d)

concentration of water vapor that form clouds in the air.

59.
Clouds are made up of tiny drops of ______ or ice. The moisture in the cloud affects the weather.
a)
dust
b)
water
c)
cloud particles
d)
precipitation
60.

Warm air tends to ______

a)

Rise

b)

Sink

61.

One way to get water vapor to condense from the air include

a)

Cooling the air down

b)

Warming the air up

62.

Where is the humidity likely to be higher?

a)

At low elevations

b)

At higher elevations

63.

How does the temperature change as you go up in elevation?

a)

The temperature gets colder as you go up

b)

The temperature gets warmer as you go up

c)

The temperature stays the same as you go up

64.

If warm air and cold air both have same amount of water vapor, which has a lower relative humidity?

a)

Cold air

b)

Warm air

65.

When someone refers to 'dry air', what they really mean is _______ .

a)

high humidity air

b)

hot air

c)

cold air

d)

low humidity air

66.
Because the earth is spinning on its axis, the global winds appear to curve. This is known as the __________ ________.
a)
Coriolis Effect
b)
Greenhouse Effect
c)
Climate Effect
d)
Atmosphere Effect
67.
Rain, snow, sleet, and hail are all forms of _____.
a)
precipitation
b)
condensation
c)
evaporation
d)
climate
68.
When does a thunderstorm become a tornado?
a)
When it touches the ground.
b)
When it is big.
c)
When it sounds like a train.
d)
When it blows hard.
69.
Warm air rises because it is __________ dense then cold air.
a)
More
b)
Less
70.
Which weather tool measures air pressure?
a)
thermometer
b)
barometer
c)
anemometer
d)
psychrometer
71.
What heats the Earth's surface?
a)
the moon
b)
the sun
c)
the ocean
d)
the sky
72.
Atmospheric conditions, along with short-term changes, of a particular place at a particular time
a)
weather
b)
climate
c)
air pressure
d)
precipitation
73.
The layer of the atmosphere where weather occurs is the _.
a)
thermosphere
b)
stratosphere
c)
mesosphere
d)
troposphere
74.
Before condensation can occur, the air must  be ____________________________.
a)
Humid
b)
Cold
c)
Hot
d)
Saturated
75.
In what areas of the world do hurricanes form?
a)
Warm ocean waters
b)
Polar ocean waters
c)
On lakes and rivers
d)
Over the central plains of the U.S
76.
What is storm that contains storm surges and has wind speeds of 74 mph - 200 mph?
a)
thunderstorms
b)
severe thunderstorms
c)
tornadoes
d)
hurricanes
77.
Most of the damage done by a hurricane is the result of _____
a)
water
b)
wind
c)
tornadoes
d)
lightning
78.
What do hurricanes feed on?
a)
warm tropical water
b)
hot water
c)
cold artic water
d)
rain
79.

 

Why is cold air is drier than warm air?

a)

because there is less room for water molecules.

b)

because the water molecules are more likely to condense to a liquid.

c)

because it cannot hold any water.

d)

because it is too dense.

80.
Which of the following have been linked to climate change?  
a)
droughts
b)
flooding
c)
melting of polar ice caps
d)
all of the above
81.

An air mass is a large mass of air that is defined by its temperature and ____________________.

a)

Elevation (altitude)

b)

Water vapor content (humidity)

c)

Strength

d)

Weather

82.

Which type of air mass is dry and warm?

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

83.

What is the correct symbol for maritime polar?

a)

MP

b)

Mp

c)

mP

d)

mp

84.

Applying what you know about air masses, which air mass would you expect to find here in Chad, Africa? (circled on the picture **hint: find the equator line**)

a)

Continental polar

b)

Continental tropical

c)

Maritime polar

d)

Maritime tropical

85.
When the atmosphere is warmed by the sun, a change in air pressure results in
a)
clouds
b)
humidity
c)
precipitation
d)
wind
86.
A person that studies, reports and forecast weather conditions is a
a)
radiologist
b)
geologist
c)
astronomer
d)
meteorologist
87.
Storms with high winds and heavy rain that form over warm ocean waters are called _____
a)
hurricanes
b)
blizzards
c)
tornadoes
d)
droughts
88.

What does salinity measure?

a)

ocean temperature

b)

amount of salt in water

c)

ratio of mass to volume

89.

Select the most dense option below.

a)

warm, 15% salty water

b)

cold, 15% salt water

c)

warm 5% salty water

d)

cold, 5% salty water

90.

Temperature and salinity together are called the _______ circulation.

a)

hot-salt

b)

Coriolis Effect

c)

wind currents

d)

thermohaline

91.
Approximately what percentage of Earth's surface is covered by oceans?
a)
40%
b)
50%
c)
60%
d)
70%
92.
Which ocean basin is the largest?
a)
the Atlantic
b)
the Indian
c)
the Pacific
d)
the Arctic
93.
Which term describes the upper part of the ocean into which sunlight penetrates?
a)
neritic zone
b)
intertidal zone
c)
oceanic zone
d)
photic zone
94.
An ocean current moving from the equator toward a pole is
a)
cold
b)
warm
c)
cold in the Northern Hemisphere and warm in the South Hemisphere
d)
warm in the Northern Hemisphere and cold in the Southern Hemisphere
95.

The energy and motion from waves is caused by

a)

currents

b)

tides

c)

wind

d)

gravity

96.
The five huge circular-moving systems of ocean surface currents are called
a)
density currents
b)
fetches
c)
drifts
d)
gyres
97.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
98.

Which type of water will sink?

a)

Warm, less salty

b)

Warm, more salty

c)

Cold, less salty

d)

Cold, more salty

99.
How many oceans are there?
a)
5
b)
10
c)
1
100.
Moving streams of water in the ocean are called ______.
a)
Surface
b)
Shore
c)
Currents 
101.
The distance between two waves?
a)
wave period
b)
wave frequency
c)
wave length
d)
none of the above
102.
Which direction do ocean waves move?
a)
back and forth
b)
up and down
c)
in a side-to-side motion
d)
in a circular motion
103.
The Coriolis Effect is caused by
a)
Earth rotating around the sun
b)
Earth rotating on its axis
c)
The tides
d)
Gravity
104.
The Gulf stream carries _____________ water from the east coast of The United States to the West coast of Europe.
a)
Cold
b)
Warm 
c)
Freezing
d)
Fresh
105.

What are the three factors that contribute to water scarcity?

a)

Climate change, overuse of groundwater, and water pollution.

b)

Climate change, ocean droughts, and water pollution.

c)

Hurricanes, overuse of groundwater, and water pollution.

d)

El niño, hurricanes, and ocean evaporation.

106.

How do oceans influence the temperature of the tropics and poles?

a)

They keep it warm by brining more rain.

b)

They help to distribute heat to the poles.

c)

The oceans do not play a role in temperature.

d)

They cool the poles by creating wind.

107.

What is plagiarism?

a)

coming up with your own ideas or way of writing the concept down

b)

putting data in graphical form

c)

using writing or part of the writing of another person as your own

d)

giving credit to others for their work

108.

Explains HOW or WHY

a)

Theory

b)

Law

109.

Which is a scientific question? 

a)

Are cats better than dogs?

b)

Do orange cats have more personality?

c)

Do orange cats eat more food than other cats?

110.

Which of the following is a question that can evaluate the reliability of conclusions and claims made by other scientists?

a)

How much money did they spend on their experiment?

b)

Do I agree with their claim?

c)

What evidence supports the claim?

d)

Do I like their results?

111.

What is a control?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

112.

What is an dependent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

113.

What is an independent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

114.
A testable explanation to a problem that has not yet been tested. 
a)

data

b)

theory

c)

hypothesis

d)

fact

115.

Which of these contains steps in the right order for the scientific method?

a)

Ask a question, research, state your hypothesis, experiment, analyze, draw a conclusion

b)

State your hypothesis, analyze, ask a question, research, experiment, , draw a conclusion

c)

State your hypothesis, ask a question, research, draw a conclusion, experiment, analyze

116.
A hypothesis is 
a)
a random guess
b)
an explanation that answers a question
c)
an experiment
117.

When should you write a hypothesis?

a)

After writing procedures

b)

After making observations and doing research on a question/problem

c)

After buying materials for an experiment

d)

At the very beginning of the experiment

118.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
119.

When can a theory be revised?

a)

if new knowledge expands and corrects our understanding

b)

if the general public does not understand the theory

120.

Science can change and is a continually ongoing process.

a)

True

b)

False