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Earth and Space 1st Nine Weeks Review

Total questions: 164

Worksheet time: 4hrs 56mins

Name
Class
Date
1.

The sun is a glowing ball of _______.

a)

fire

b)

energy

c)

super hot gases

d)

rocks

2.

The sun is a _______.

a)

star

b)

planet

c)

satellite

d)

meteor

3.

How long does it take energy from the Sun's core to reach its surface?

a)

about 100,000 years

b)

about 8 minutes

c)

about 1,000,000 years

d)

the energy from the core never reaches the surface

4.

All stars, including our Sun, are mostly made of these 2 elements

a)

hydrogen and helium

b)

hydrogen and oxygen

c)

iron and nickel

d)

vibranium and adamantium

5.

What is the name of the process by which stars produce their energy?

a)

nuclear fusion

b)

convection

c)

hydrogen fusion

d)

radiation

6.

Which of the following lists some of the layers of the Sun in order from the center of the Sun outward?

a)

radiation zone, convection zone, chromosphere, core, photosphere, corona

b)

radiation zone, convection zone, core, photosphere, chromosphere, corona

c)

core, radiation zone, convection zone, photosphere, corona, chromosphere

d)

core, radiation zone, convection zone, photosphere, chromosphere, corona

7.

Which layer of the Sun is the most visible to an observer on Earth?

a)

chromosphere

b)

core

c)

photosphere

d)

corona

8.

Which of the following correctly describes the rotation of the Sun?

a)

All parts of the Sun rotate together.

b)

The Sun rotates faster at its equator than at its pole.

c)

The Sun rotates slower at its equator than at its pole.

d)

The Sun does not rotate at all.

9.

Why does the Sun rotation vary with latitude?

a)

Because it is composed of solids.

b)

Because it is composed of liquids.

c)

Because it is composed of gases.

10.
The middle layer of the sun's interior that contains very tightly packed gas is called the _____________.
a)
photosphere
b)
chromosphere
c)
radiation zone
d)
convection zone
11.
In which area of the sun does gas rise as it heats up, then fall back down as it cools?
a)
the core
b)
the radiation zone
c)
the convection zone
d)
the corona
12.
What layer gives the sun it's reddish color during a solar eclipse?
a)
convection zone
b)
corona
c)
chromosphere
d)
photosphere
13.
What layer of the sun's atmosphere gives the sun its "white halo" during a solar eclipse?
a)
chromosphere
b)
photosphere
c)
corona
d)
atmosphere
14.
The particles of the corona extends into space for millions of kilometers and spreads into streams of electrically charged particles called:
a)
coronal discharge
b)
solar flares
c)
coronal ejection
d)
solar winds
15.
Areas of gas on the sun's surface that are cooler than gases around them are called:
a)
corona
b)
prominences
c)
sunspots
d)
solarspots
16.
The number of sunspots on the sun varies in a cycle that is about how long?
a)
6-8 years
b)
10-11 years
c)
12-15 years
d)
365 days
17.
Huge loops of reddish gas that connect sunspots are called:
a)
prominences
b)
solar flares
c)
coronal loops
d)
solar wind
18.
When prominences erupt into space releasing gas and energy we call this: 
a)
solar winds
b)
coronal outburst
c)
solar flares
d)
auroras
19.
Which layer of the sun is the hottest?
a)
Photosphere
b)
Chromosphere
c)
Corona
d)
Core
20.
The middle of the Sun is called the
a)
Corona
b)
Photosphere
c)
Core
d)
Convection Zone
21.
What happens during nuclear fusion
a)
Hydrogen reacts with Oxygen to create fire.
b)
Hydrogen atoms are forced together to create Helium
c)
Uranium and Plutonium split apart and release radiation.
d)
Helium atoms break down to make hydrogen
22.
Where does nuclear fusion occur?
a)
Space
b)
Radiation Zone
c)
Photosphere
d)
The Core
23.
Can only be seen during a solar eclipse; outer layer; looks like a white halo
a)
corona
b)
photosphere
c)
core
d)
fusion
24.
These are the pretty lights that occur at the north and south poles.
a)
Photosphere
b)
Aurora
c)
Magnetic field
d)
Solar wind
25.
These can disrupt electronics on Earth.
a)
Sunspots
b)
Solar flares
c)
Comets
d)
Mars
26.

What protects Earth from solar winds?

a)

The poles

b)

The moon's gravity

c)

The magnetic field and the atmosphere

d)

The tidal range

27.
Where is the weakest area of the magnetic field around Earth?
a)
Equator
b)
Poles
28.
What causes aurora borealis or northern lights?
a)
The Corona
b)
Prominences
c)
Sunspots
d)
Solar Flares
29.
Particles thrown off the sun’s corona that can affect Earth’s magnetic field are called
a)
a coronal mass ejection.
b)
a coronal mass reflection
c)
nuclear fusion
d)
sunspots
30.
What is the state of matter in the sun?
a)
Gas
b)
Liquid
c)
Plasma
d)
Solid
31.

The Sun is held together by __________.

a)

plasma

b)

heat

c)

gravity

d)

the atmosphere

32.

The Earth is 93 million miles from the Sun, the light from the Sun takes about _________________to reach us.

a)

8 hours

b)

8 days

c)

8 minutes

d)

8 seconds

33.

The Sun takes up 99.8% of the Solar System

a)

True

b)

False

34.
When compared to the gases around the sun, sunspots are
a)
hotter
b)
cooler
c)
brighter
d)
glowing white
35.
  What does "geo-" mean?
a)
Earth
b)
sun
c)
Center
36.
This image shows the:
a)
Geocentric Solar System
b)
Heliocentric Solar System
37.
A model of the solar system in which Earth and the other planets revolve around the SUN.
a)
Heliocentric
b)
Geocentric
38.
The sun centered view of the universe
a)
Galaxy
b)
Geocentric
c)
Astonomy
d)
Heliocentric
39.
Copernicus' view of the universe
a)
Galaxy
b)
Geocentric
c)
Astonomy
d)
Heliocentric
40.
Ptolemy's view of the universe
a)
Galaxy
b)
Geocentric
c)
Astonomy
d)
Heliocentric
41.
What did Galileo Improve?
a)
The astrolabe
b)
the stars
c)
The Telescope
d)
cat food.
42.
This astronomer confirmed the heliocentric theory with his telescope.
a)
Galileo
b)
Kepler
c)
Copernicus
d)
Aristotle
43.
discovered Jupiter's four moons
a)
Copernicus
b)
Galileo
c)
Brahe
d)
Aristotle
44.
"Grandfather of Science"
a)
Galileo
b)
Kepler
c)
Ptolemy
d)
Aristotle
45.
Predicted the position the planets are in today
a)
Galileo
b)
Ptolemy
c)
Copernicus
d)
Aristotle
46.
Made careful observations & recorded positions of planets by observing from his observatory.
a)
Tycho Brahe
b)
Ptolemy
c)
Copernicus
d)
Aristotle
47.
Kepler was assistant to this astronomer.
a)
Tycho Brahe
b)
Ptolemy
c)
Copernicus
d)
Aristotle
48.
Using Tycho’s Brahe's data, found elliptical orbits of planets.
a)
Kepler
b)
Ptolemy
c)
Copernicus
d)
Aristotle
49.
Which astronomer created laws of gravity and motion? 
a)
Kepler
b)
Copernicus
c)
Brahe 
d)
Newton
50.
This astronomer discovered that the orbit of each planet is an ellipse, or an oval shape, and not perfectly circular.
a)
Aristotole
b)
Copernicus
c)
Kepler
d)
Newton
51.
What shape is an ellipse?  
a)
An oval shape
b)
A round shape
c)
A circle shape 
d)
Sun, moon and Earth lined up shape
52.
Discovered Uranus and two of its moons and two more moons of Saturn
a)
Giovanni Cassini
b)
Tycho Brahe
c)
William Herschel
d)
Aristotle
53.

Who would have said, " I originally proposed the heliocentric model but not many would believe me."

a)

Ptolemy

b)

Sun- Centered

c)

Aristarchus of Samos

d)

Dr. Pope

54.

Who attempted to measure the relative distance to the moon and sun?

a)

Aristarchus

b)

Galileo

c)

Aristotle

d)

Copernicus

55.
Which astronomer of antiquity measured the size of the earth?
a)
Aristarchus
b)
Ptolemy
c)
Copernicus
d)
Eratosthenes
56.
Who first suggested that earth rotated on its axis?
a)
Tycho Brahe
b)
Aristarchus
c)
Aristotle
d)
Copernicus
57.

This astronomer proved other galaxies existed beyond the Milky Way and determined the universe is expanding.

a)

Kepler

b)

Hubble

c)

Sagan

d)

Brahe

58.

Contributed to the identification of constellations and thus to the development of observational astronomy in the Greek world, and established the first sophisticated, geometrical model of celestial motion.

a)

Exodus

b)

Fred Hoyle

c)

Eratosthenes

d)

William Herschel

59.

First suggested the rotation of the Earth.

a)

Stephen Hawking

b)

Heraclides Ponticus

c)

Aristarchus of Samos

d)

Ralph Alpher

60.

Discovery of the aberration of starlight, an apparent slight change in the positions of stars caused by the yearly motion of the Earth. That finding provided the first direct evidence for the revolution of the Earth around the Sun.

a)

Albert Einstein

b)

Tycho Brahe

c)

Stephen Hawking

d)

James Bradley

61.

He was the first to measure accurately the parallax, and hence the distance, of a star other than the Sun.

a)

Fred Hoyle

b)

Carl Sagan

c)

Friedrich Bessel

d)

Neil deGrasse Tyson

62.

First to observe Neptune

a)

Exodus

b)

Johann Galle

c)

Alan Guth

d)

Copernicus

63.

E = mc2, special relativity, and general relativity

a)

Einstein

b)

Michio Kaku

c)

Johannes Kepler

d)

Eratosthenes

64.

British mathematician and astronomer best known as the foremost proponent and defender of the steady-state theory of the universe. This theory holds both that the universe is expanding and that matter is being continuously created to keep the mean density of matter in space constant.

a)

Tycho Brahe

b)

Carl Sagan

c)

Fred Hoyle

d)

Michio Kaku

65.

American physicist that was best known for proposing the theory of an inflationary universe, a variation of the big-bang model.

a)

Edwin Hubble

b)

Stephen Hawking

c)

Adam Riess

d)

Alan Guth

66.

Described a process by which all of the known elements in the universe could have come into existence shortly after the big bang.

a)

Fred Hoyle

b)

Johann Galle

c)

Michio Kaku

d)

George Gamow and Ralph Alpher

67.

Helped decide where the Viking probe would touchdown on Mars. Helped create messages that would be sent beyond our solar system on the Pioneer and Voyager probes.

a)

Carl Sagan

b)

Edwin Hubble

c)

Stephen Hawking

d)

Albert Einstein

68.

Known for his famous theory of relativity and quantum mechanics. Wrote A Brief History of Time. Has ALS.

a)

Michio Kaku

b)

Carl Sagan

c)

Neil deGrasse Tyson

d)

Stephen Hawking

69.

Discovered Pulsars

a)

Jocelyn Burnell

b)

Ptolemy

c)

Hubble

d)

Hawking

70.

Cofounder of the string field theory

a)

Albert Einstein

b)

Michio Kaku

c)

Friedrich Bessel

d)

Stephen Hawking

71.

Famous for popularizing astronomy and continuing Carl Sagan’s Cosmos.

a)

Neil deGrasse Tyson

b)

Alan Guth

c)

Albert Einstein

d)

Michio Kaku

72.

What is a nebula?

a)

cataclysmic explosion

b)

Dust and gas between two stars

c)

solar system

d)

Big bang

73.

How were the planets in the solar system formed?

a)

Nebulae started to form planets around the sun

b)

Dust and gases began to clump together to form planets around the sun

c)

Planets started to form as a result of nuclear fusion in the sun

d)

None of the above

74.

Multiverse is also called

a)

Parallel universe

b)

Alternate universe

c)

Many worlds

d)

All of the above

75.

How old is the universe?

a)

14.1 billion years old

b)

13.8 billion years old

c)

12.9 billion years old

d)

11.6 billion years old

76.

Which statement is true?

a)

The galaxies are moving toward us.

b)

The galaxies are moving away from us.

c)

The universe remains static or unchanged in motion.

d)

None of the above

77.

Most scientists believe the Big Bang Theory explains which of the following questions?

a)

How our planets and moons formed

b)

How our universe began

c)

How the sun turns hydrogen into helium

d)

How fast light travels through space

78.
Why is the light from distant galaxies red-shifted?
a)
They produce more red light than nearby galaxies
b)
They are moving away from us
c)
The longer wavelengths are filtered out more by dust
d)
They are moving toward us
79.
What were the original two elements in our universe?
a)
Lithium and Carbon
b)
Hydrogen and Neon
c)
Helium and Chlorine
d)
Hydrogen and Helium
80.

What is the steady-state theory?

a)

the doctrine that God immediately creates out of nothing a new human soul for each individual born.

b)

a theory in which the universe is assumed to have average properties that are constant in space and time

c)

a theory that deduces the origins of the universe.

d)

A theory according to which the universe underwent extremely rapid expansion, and has been expanding ever since.

81.

What is the Eternal inflation theory?

a)

the doctrine that God immediately creates out of nothing a new human soul for each individual born.

b)

a theory in which the universe is assumed to have average properties that are constant in space and time

c)

a theory that deduces the origins of the universe.

d)

A theory according to which the universe underwent extremely rapid expansion, and has been expanding ever since.

82.

What is the Oscillating theory?

a)

In other words, our universe can be the first of a possible series of universes or it can be the nth universe in the series.

b)

a theory in which the universe is assumed to have average properties that are constant in space and time

c)

a theory that deduces the origins of the universe.

d)

A theory according to which the universe underwent extremely rapid expansion, and has been expanding ever since.

83.

This theory states that new universes can form from the combining of universes.  Once universes expand and die they eventually collide.  This collision could potentially create a new universe.

a)

Eternal Inflation

b)

Oscillating Universe

c)

The Big Bang

d)

The Big Splat

84.

This theory states that the world we live in is actually an illusion.  It states that everything around us is generated by something such as a computer.

a)

Multiverse

b)

Simulation Theory

c)

Steady State

d)

The Big Splat

85.
All stars start as gas and dust in a(n)
a)
nebula
b)
black hole
c)
red giant
d)
black dwarf
86.
After the main sequence, a low mass star becomes a
a)
black dwarf
b)
protostar
c)
red giant
d)
supergiant
87.
After the main sequence, a high mass star becomes a
a)
black dwarf
b)
protostar
c)
red giant
d)
supergiant
88.
The final stage of a low mass star is a 
a)
neutron star
b)
nebula
c)
black hole
d)
black dwarf
89.
After a supergiant, a high mass star explodes and forms a
a)
supernova
b)
red giant
c)
black hole
d)
planetary nebula
90.
A high mass star can end as this stage, which is so dense that not even light can escape!
a)
black dwarf
b)
white dwarf
c)
supernova
d)
black hole
91.
When a nebula heats up, a "baby" star forms in the middle. It is called a
a)
supernova
b)
supergiant
c)
white dwarf
d)
protostar
92.
Which of the following is NOT a final stage of a star. 
a)
black hole
b)
black dwarf
c)
neutron star
d)
red giant
93.

The only force acting on the nebulae is:

a)

thermal expansion

b)

singularities

c)

gravity

d)

microscopic adhesion

94.

A star is born when:

a)

nuclear fusion starts

b)

a nebula becomes a protostar

c)

gases in a nebula condense

d)

hydrogen is used up in fusion processes

95.

When the core of a Red Giant collapses it becomes a:

a)

White Dwarf

b)

Supernova

c)

Red Supergiant

d)

Black Hole

96.

When a massive star begins to cool and expand it is known as a:

a)

Black Dwarf

b)

Red Giant

c)

Red Supergiant

d)

White Dwarf

97.

One possible outcome that is left after a supernova is a super dense core called a:

a)

Neutron Star

b)

White Dwarf

c)

Red Giant

d)

Black Dwarf

98.

A black hole is black because:

a)

there is nothing in it

b)

it is too small to see

c)

it is inherently evil

d)

even light cannot escape its gravity

99.

Our sun is currently in what star stage?

a)

Protostar

b)

Nebula

c)

Main Sequence

d)

Red Giant

100.

Main sequence stars are made primarily of which elements?

a)

Hydrogen only

b)

Helium and Carbon

c)

Carbon and Iron

d)

Hydrogen and Helium

101.

The stable and longest lasting period of a star’s life cycle is called:

a)

The birth of a star

b)

Nebula

c)

Neutron star

d)

Main Sequence

102.
What fuel do stars use? 
a)
Oxygen
b)
Hydrogen
c)
Carbon
d)
Iron
103.

What is a celestial body that is composed of gas and emits light from nuclear fusion reactions?

a)

Nebula

b)

Star

c)

Galaxy

d)

Planet

104.

How many stars are there in our solar system

a)

1

b)

1 billion

c)

1 million

d)

100

105.
Hotter stars appear to be what color? 
a)
Red
b)
Blue
c)
Yellow
d)
Green
106.
Cooler stars appear to be what color? 
a)
Red
b)
Blue
c)
Yellow
d)
Green
107.
What determines the color of a star? 
a)
It's size
b)
It's temperature
c)
It's composition
d)
They are all the same color 
108.
Which of the following best describes a star?  A star is a celestial body ---
a)
composed of rock and metal with a very high density
b)
that is too big to be an asteroid, but too small to be a planet.
c)
that rotates on an axis and revolves around the Sun
d)
composed of gases that emit light due to nuclear reactions
109.
Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity?
a)
Main Sequence Stars
b)
Giants
c)
Super Giants
d)
White Dwarfs
110.
Use the Hertzsprung-Russell Diagram to answer the following question.  Betelgeuse is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
111.
Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
112.
Analyze this HR Diagram. Which group of stars is considered to have lower than average luminosity as well as a higher than average temperature?
a)
Giants
b)
Main Sequence
c)
White Dwarfs
d)
Super Giants
113.
Analyze this HR Diagram. Which group of stars is considered to have higher than average luminosity as well as a lower than average temperature?
a)
Giants
b)
Main Sequence
c)
White Dwarfs
d)
Super Giants
114.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
115.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
116.
Which of these observations of Proxima Centuri's Star is most likely accurate?
a)
Proxima Centuri's Star is less bright than the sun and has a surface temperature below 3,400 K
b)
Proxima Centuri's Star is less bright than the sun and has a surface temperature above 3,400 K
c)
Proxima Centuri's Star is brighter than the sun and has a surface temperature below 4,000 K
d)
Proxima Centuri's Star is brighter than the sun and has a surface temperature above 4,000 K
117.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
118.
Spectral class is a way of describing a star’s
a)
size
b)
luminosity
c)
age
d)
color
119.
Barnard's Star has a temperature of 2,800, what is its spectral class?
a)

Spectral Class O

b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M
120.
Zeta Eridani has a temperature of 40,000 what is its spectral class?
a)
Spectral Class O
b)
Spectral Class A
c)
Spectral Class G
d)
Spectral Class M
121.
Use the diagram to answer the question.Using the figure, Aldebaran, Mira, and Pollux are all _____ stars.
a)
giant
b)
supergiant
c)
main-sequence
d)
white dwarf
122.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
123.

Kepler's 2nd Law deals with

a)

the shape of the planets' orbits

b)

the area the planet travels

c)

the length of time/period it takes the planet to orbit the sun

124.
A planet moves __________ when it is farthest from the sun.
a)
faster
b)
slower
125.
The farther away a planet is from the sun, the _______ it takes it to orbit the sun once. 
a)
longer
b)
shorter
126.

What does Kepler's 1st Law state?

a)

all planets move in elliptical shaped orbits around the sun

b)

all ellipses have one foci

c)

the area that a planet revolves around the sun is equal

d)

the speed that a planet revolves around the sun changes

127.
The path a planet travels around the sun is called its 
a)
orbit
b)
ellipse
c)
barycenter
d)
precession
128.
What does Kepler's 2nd Law state? 
a)
during a planet's orbit, the planet will sweep out equal areas in its orbit in equal amounts of time
b)
all areas are equal in space
c)
triangles have equal areas
d)
no two points in a planet's orbit are equal
129.
What is Kepler's 1st Law?
a)
Law of Orbits
b)
Law of Areas
c)
Law of Periods
130.
What is Kepler's 2nd Law?
a)
Law of Orbits
b)
Law of Areas
c)
Law of Periods
131.
What is Kepler's 3rd Law?
a)
Law of Orbits
b)
Law of Areas
c)
Law of Periods
132.
Kepler's 3rd Law states that:
a)
Planets orbit the sun in elliptical paths.
b)
As planets orbit the sun, they cover equal areas in equal times.
c)
The farther a planet is from the sun, the longer it will take to make a complete orbit.
133.

According to Newton's first law, an object in motion will stay in motion unless:

a)

A balanced force acts on it

b)

An unbalanced force acts on it

c)

It stops

d)

It remains at rest

134.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
135.
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
136.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
137.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
138.

What is Newton's Second Law

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

An object at rest stays at rest, an object in motion stays in motion.

d)

Friction

139.

What states that "every object in the universe attracts every other object"?

a)

Law of Universal Gravitation

b)

Newton's First Law of Motion

c)

Law of Inertia

d)

Law of force

140.

Which of the following formulas is the correct equation for the law of Universal gravitation?

a)

F=GM1M2d2F=\frac{GM_1M_2}{d^2}

b)

F=mgF=mg

c)

F=Gd2m1m2F=\frac{Gd^2}{m_1m_2}

d)

F= F=KQ1Q2d2F=\frac{KQ_1Q_2}{d^2}

141.

Letting go of a balloon full of air is demonstrating Newton's ______ _______ ________ _________ because the air comes out of the back and the balloon moves forward.

a)

1st law of motion

b)

2nd law of motion

c)

3rd law of motion

d)

13th law of motion

142.

A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.

a)

The Law of Inertia (1st law)

b)

The Law of Acceleration (2nd law)

c)

The Law of Conservation of Momentum

d)

Action Reaction Law (3rd law)

143.

Two factors effecting the magnitude of the force of gravity between 2 objects are...

a)

mass and distance

b)

mass and matter

c)

distance and weight

d)

weight and mass

144.

Which pair of masses will have the greatest gravitational force of attraction between them?

a)

top pair because they have the greatest masses and are closer together

b)

bottom pair because they have the greatest masses and are further apart

c)

middle pair, because they are closer together

d)

all have the same Fg

145.

True or false: Gravitational attraction is the weakest of the four fundamental forces and acts over long distances

a)

True

b)

False

146.

What force keeps the planets in their orbital paths around the sun?

a)

Satellites

b)

Gravity

c)

Attraction

d)

Velocity

147.

What would happen to our planets if the sun no longer had gravity?

a)

The planets would remain in orbit since they still have gravity

b)

The planets would drift off into space in a curved path

c)

The planets would drift off into space in a straight path

d)

The planets would crash into the sun

148.
The earth is tilted on its _____
a)
line
b)
equator
c)
axis
d)
core
149.
Earth does a complete revolution every _______
a)
10 years
b)
12 hours
c)
24 hours
d)
365 days
150.
The earth rotates every
a)
24 hours
b)
15 hours
c)
365 days
d)
hour
151.
What does the tilt of the earth cause?
a)
heating
b)
Seasons
c)
Atmosphere
d)
Years
152.
How many times does earth rotate in one year?
a)
365
b)
2
c)
97
d)
120
153.
What causes day and night cycles?
a)
mars
b)
seasons
c)
earths rotation
d)
moon phases
154.
The Earth's axis is tilted _____ degrees.
a)
23.5
b)
25.3
c)
30.2
d)
24
155.
At position A, which hemisphere would have summer?
a)
Northern hemisphere
b)
Southern hemisphere
c)
Neither hemisphere
156.
What season is it in the Southern Hemisphere when it is fall in the Northern Hemisphere?
a)
winter
b)
spring
c)
summer
d)
fall
157.
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.
158.
Which season is taking place in the Southern Hemisphere in Position 1?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
159.
What would seasons be like if Earth's axis were straight up and down?
a)
Seasons would be the same.
b)
Seasons would be more extreme.
c)
There would be no seasons.
d)
Seasons would vary. 
160.
If Earth rotated slower, we would have...
a)
shorter days.
b)
longer days.
c)
shorter years.
d)
longer years.
161.
Where on Earth can you experience entire days of darkness?
a)
The equator
b)
The poles
c)
The Tropic of Cancer
d)
The Tropic of Capricorn
162.
The Northern Hemisphere gets __________ sunlight in the winter, which leads to _________ temperatures.
a)
less direct, hotter
b)
less direct, colder
c)
more direct, hotter
d)
more direct, colder
163.
Which season is taking place in the Southern Hemisphere in Position 4?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
164.
You are getting ready for school.  On the other side of the world, students are getting ready for _______.
a)
school
b)
bed
c)
breakfast
d)
lunch

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