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review Quarter 4 test 1

Total questions: 164

Worksheet time: 3hrs 30mins

Name
Class
Date
1.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
2.
Without gravity we would________. 
a)
Float away
b)
Stay in the ground
c)
Nothing would happen.
d)
I don't know
3.
Why a ball falls to the ground?
a)
Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground. 
b)
Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground. 
4.
Which has a STRONGER force of gravity, Earth or the Moon?
a)
Earth
b)
Moon
5.
Why can astronauts jump and float a little on the Moon?
a)
Because the Moon's gravity is NOT that STRONG.
b)
Because the Moon's gravity is VERY STRONG. 
6.
What is mass?
a)
How much MATTER makes up an object.
b)
How much GRAVITY is pulling an object.
7.
Is weight AFFECTED by gravity?
a)
YES, depending on the force of gravity is how much you weight.
b)
NO, it is not related.
8.
Where would you have more mass, on Earth or on the Moon?
a)
Earth
b)
Moon
c)
IS THE SAME, mass DOESN'T CHANGE
d)
In both Planets.
9.
Any object with mass has gravity.
a)
True
b)
Sometimes
c)
False
d)
Never
10.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
11.
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
12.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
13.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
14.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
15.
Which System has the greater gravitational pull between the two objects?
a)
System 1
b)
System 2
c)
Same: there is no gravitational attraction between the two objects
16.

Describes the movements of tectonic plates over long periods of time

a)

Continental drift

b)

Mantle

c)

Plate tectonics

d)

Convection Currents

17.

Layer where convection currents occur

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

18.

Circular movements through the mantle

a)

Convection Currents

b)

Continental Drift

c)

Plate Tectonics

d)

Sea-Floor Spreading

19.

The theory that the outer layer of Earth is divided and moves across Earth’s surface

a)

Plate Tectonics

b)

Continental Drift

c)

Sea-Floor Spreading

d)

Mantle

20.

The pieces of Earth’s crust and uppermost mantle are referred to as _____________________________ or lithosphere.

a)

Continental Drift

b)

Crust

c)

Sea-Floor Spreading

d)

Tectonic Plates

21.

Place where one heavier (more dense) tectonic plate, slides under the lighter (less dense) tectonic plate

a)

Ring of Fire

b)

Subduction Zone

c)

Continental Drift

d)

Convection Currents

22.

Any location where two tectonic plates interact (touch)

a)

Sea-Floor Spreading

b)

Plate Boundaries

c)

Tectonic Plates

d)

Subduction Zone

23.

How many ways can tectonic plates interact

a)

1

b)

2

c)

3

d)

4

24.

Large moving pieces that make up the Earth's crust

a)

Continental Drift

b)

Sea-Floor Spreading

c)

Tectonic Plates

d)

Convection Currents

25.

When magma from the mantle rises in between two oceanic plates and pushes them away from each other.

a)

Subduction Zone

b)

Tectonic Plates

c)

Sea-Floor Spreading

d)

Convection Currents

26.

The attractive force between objects is called....

a)

force

b)

Gravity

c)

inertia

27.

The scientific law that states that every object in the universe attracts every other object is called...

a)

Gravity

b)

Inertia

c)

Universal Law of Gravitation

28.

The amount of matter in an object is called....

a)

inertia

b)

Gravtity

c)

mass

29.

A measure of the force of gravity on an object is called...

a)

weight

b)

mass

c)

gravity

30.

WHAT 2 FACTORS affect the force of gravity?

a)

Mass and inertia

b)

Mass and Distance

c)

Mass and Gravity

31.

As the mass of interacting objects increases, gravity.....

a)

increases

b)

decreases

32.

As the mass of interacting objects decreases, gravity.....

a)

increases

b)

decreases

33.

As the distance of interacting objects increases, gravity.....

a)

increases

b)

decreases

34.

The greater the pull of gravity on an object, the greater the ............. of that object.

a)

mass

b)

weight

c)

gravity

35.

When will the forces of gravity between two objects be the GREATEST?

a)

when the masses of both objects are small and the objects are far apart

b)

when the masses of both objects are large and the objects are close together

c)

when the masses of both objects are small and the objects are close together

36.

The name of our galaxy is the

a)

Andromeda

b)

Milky Way

c)

Whirlpool

37.
We can't see all of the stars in our galaxy because they
a)
are too far away
b)
are too hot
c)
are revolving too quickly
38.
There are other galaxies besides ours.
a)
True
b)
False
39.
The Milky Way is shaped like a
a)
ellipse
b)
spiral
c)
double spiral
40.
The universe is
a)
1 light year across
b)
everything that exists
c)
only our galaxy
41.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

42.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

43.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

44.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

45.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

46.

The force of gravitational attraction between the Sun and Venus could be increased by reducing which of the following?

a)

The distance between the Sun and Venus

b)

The period of rotation of the Sun

c)

The mass of the Sun and Venus

d)

The speed of the orbit of Venus

47.

Which of the following is a complete list of the inner planets?

a)

Venus, Earth, Mars, Jupiter

b)

Mercury, Venus, Earth, Mars

c)

Jupiter, Saturn, Uranus, Neptune

d)

Mercury, Venus, Earth, Jupiter

48.

If someone is building a scale model of our solar system which characteristic would be the most difficult to build into the model?

a)

The number of objects

b)

The colors of the objects

c)

The distances between objects

d)

The composition of the objects

49.

The orbital motions of the objects in the solar system are the direct result of which of the following features of the Sun?

a)

Its magnetic field

b)

Its brightness

c)

Its gravitational pull

d)

Its chemical composition

50.

Students are planning to build a scale model of the outer planets of the solar system. The table here shows some of the objects the students will use for their scale model.

Based on the information in the table provided, which of the following representative objects and scaled diameters should they choose for the planet Saturn?

a)

Basketball, 24 cm

b)

Softball, 10 cm

c)

Tennis ball, 5.2 cm

d)

Baseball, 7.5 cm

51.

What characteristics distinguish the inner planets in the solar system from the outer planets?

a)

smaller than outer planets

b)

more colorful than outer planets

c)

more terrestrial (rocky)

d)

less atmosphere than outer planets

52.

What makes up the solar system?

a)

sun

b)

moon

c)

asteroids

d)

black hole

53.

Which of the following BEST describes the shape of each planets orbit?

a)

circle

b)

elliptical

c)

sphere

d)

rectangular

54.

Why is a year on the outer planets much longer than a year on the inner planets?

a)

they are larger

b)

they are closer to the sun

c)

they have a larger orbit since they are further from the sun

d)

a year is the same amount of time on all planets

55.

Why do all planets orbit the sun?

a)

The sun is very large and has a weak gravitational pull, so the planets stay close to it

b)

The sun is smaller than the planets and has a large gravitational pull that attracts the planets

c)

The sun is large and has a large gravitational pull that makes the planets orbit it

d)

The sun orbits the planets because it needs to keep them warm

56.

Two factors affecting the strength 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

57.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
58.

Jackson and Maya are comparing two objects, one with a greater mass than the other. They observe that the object with greater mass has

a)

less gravitational force

b)

stronger gravitational force

c)

no clue

d)

a way to break apart

59.
The closer two objects are to each other
a)
the harder they will land
b)
have no gravitational force
c)
have a stronger gravitational force
d)
yep
60.

Aria and Rohan are comparing two objects with different masses. What happens to the gravitational force between the objects as one object's mass increases?

a)

increases

b)

decreases

c)

stays the same

d)

i don't know

61.

Isla, Elijah, and Abigail are discussing the force that keeps objects in our solar system orbiting our Sun. Which force are they talking about?

a)

push

b)

gravity

c)

motion

d)

pull 

62.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
63.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
64.

Which celestial body has the smallest amount of gravity?

a)

Mercury

b)

Uranus

c)

Pluto

d)

Venus

65.
Which planet has the greatest amount of gravity?
a)
Saturn
b)
Uranus
c)
Neptune
d)
Jupiter
66.

Which describes the inner planets?

a)

the inner planets are small, gaseous and have rings

b)

the inner planets are large, solid and have many moons

c)

the inner planets are solid, rocky, and smaller

d)

the inner planets are solid, have many moons and rings

67.

Which of these choices explains why this model of the solar system cannot be correct?

a)

Earth does not have enough gravitational pull to be located in the center of the Solar System.

b)

Venus is larger than the Moon so it would be located closer to the center.

c)

Saturn has as much mass as Earth so it would be located in the center.

d)

Mars and Mercury have an equal amount of gravitational pull so should be on the same orbital pathway.

68.

What does orbit mean?

a)

A measurement of how much something weighs.

b)

The repeating path that an object takes in space when it moves around a star, planet or moon.

c)

How much matter takes up space.

d)

The push or pull on a planet.

69.

Elijah, Sophia, and Abigail are on a school trip to a planetarium. The guide asks them, 'Which group of planets are known as the rocky planets?'

a)

Jupiter, Saturn, Venus, and Mars.

b)

Earth, Mars, Pluto and Venus

c)

Saturn, Jupiter, Venus and Earth

d)

Mercury, Venus, Earth and Mars.

70.

Kai, James, and Ethan are planning a trip to the outer planets. Which planets will they be visiting?

a)

Mercury, Venus, Earth, and Mars

b)

Pluto, Saturn, Mercury, and Mars

c)

Saturn, Jupiter, Uranus, and Neptune.

d)

Mercury, Venus, Earth, and Saturn

71.

Which of the following is true?

a)

The farther a planet is from the sun, the

longer it takes for the planet to move around

the sun.

b)

The closer a planet is to the sun, the longer it

takes for the planet to move around the sun.

c)

The smaller a planet is, the longer it takes for

the planet to move around the sun.

d)

The larger a planet is, the longer it takes for

the planet to move around the sun.

72.

Henry, Isla, and Daniel are discussing about the universe. They are trying to figure out which of these astronomical objects is the largest. Can you help them?

a)

A Star

b)

A Spiral Galaxy

c)

A Planet

d)

A Solar System

73.

A student made a model of how the planets orbit the sun. She used a tennis ball to represent the sun. She used ping-pong balls to represent each planet, and painted each one a different color. Then, she placed all the ping-pong balls equal distances apart in a line extending out from the sun. What are two limitations of the student's model?

a)

She used the same size balls to represent the planets.

b)

She made planets orbit the sun.

c)

The planets are not the correct distances from the sun.

d)

The solar system can't be modeled using actual objects.

74.

Why do scientists use scale to study the Solar System?

a)

The solar system is too large to study without using scale models

b)

The solar system is too small to study without using scale models

c)

Scientists don't need to use scale because we have satellites

d)

All of the above

75.

Why is making a model of the solar system difficult?

a)

Don't have the right materials

b)

The solar system is so big and the objects in it are so small in comparison

c)

There are too many parts in a model

d)

Because the science concepts are too difficult

76.

Which planet in the Solar system has the shortest orbital period?

a)
Mercury
b)
Earth
c)
Jupiter
d)
Neptune
77.

If you were going to make a scale model of the Solar system what planet should be the second largest in diameter?

a)

Jupiter

b)

Saturn

c)

Earth

d)

Uranus

78.

If you were to make a scale model of the Solar system what planets in the solar system should be most similar in size?

a)

Earth and Venus

b)

Mars and Mercury

c)

Uranus and Neptune

d)

Jupiter and Saturn

79.

Which planet the solar system has the greatest mass?

a)

Earth

b)

Venus

c)

Saturn

d)

Jupiter

80.
True or False
The planets are all equally distanced from each other.
a)
True
b)
False
81.
The moon is a natural  ______ of Earth.
a)
comet
b)
axis
c)
satellite
d)
space probe
82.

A tool that can be on Earth or orbiting Earth that helps scientists to see far into space is called...

a)

orbiter

b)

lander

c)

rover

d)

telescope

83.

Which space tool is shown here?

a)

satellite

b)

telescope

c)

space probe

d)

observatory

84.

All of space and everything in it including stars, planets, galaxies, etc.

a)

Universe

b)

Galaxy

c)

Planetary System

d)

Milky Way

85.

A collection of stars, dust, and gas held together by gravity.

a)

Universe

b)

Galaxy

c)

Planetary System

d)

Astronomical Unit (AU)

86.

A large spiral galaxy that is home to Earth and the rest of our solar system, and about a trillion stars. .

a)

Milky Way

b)

Galaxy

c)

Planetary System

d)

Astronomical Unit (AU)

87.

A star with planets and other celestial bodies orbiting around it, held together by gravity.

a)

Light year

b)

Galaxy

c)

Planetary System

d)

Astronomical Unit (AU)

88.

Our sun, planets, and all the other objects that revolve around the sun.

a)

Light year

b)

Galaxy

c)

Solar System

d)

Astronomical Unit (AU)

89.

The average distance between Earth and the sun

a)

Light year

b)

Galaxy

c)

Distance

d)

Astronomical Unit (AU)

90.

The distance light travels in one year

a)

Light year

b)

Celestial body

c)

Distance

d)

Astronomical Unit (AU)

91.

A natural object in space such as a star , moon, planet, asteroid, planetoid, comet.

a)

Planet

b)

Celestial body

c)

Star

d)

Astronomical Unit (AU)

92.

An exploding ball of burning gas held together by gravity, creates its own heat and light.

a)

Planet

b)

Celestial body

c)

Star

d)

Planetoid

93.

An object that orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.

a)

Planet

b)

Celestial body

c)

Star

d)

Planetoid

94.

A celestial object that orbits the sun but is not a planet or a comet, not always rounded, has not cleared the area of its orbit.

a)

Comet

b)

Celestial body

c)

Moon

d)

Planetoid

95.

A small, rocky object that orbits the Sun.

a)

Comet

b)

Asteroid

c)

Moon

d)

Planetoid

96.

A natural object that revolves around a planet.

a)

Comet

b)

Orbit

c)

Moon

d)

Planetoid

97.

A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.

a)

Comet

b)

Asteroid

c)

Orbital Motion

d)

Planetoid

98.

The path of an object as it revolves around another object in space.

a)

Orbit

b)

Asteroid

c)

Orbital Motion

d)

Planetoid

99.

Motion that results from the combination of the objects forward movement and the pull of gravity on the object.

a)

Mass

b)

Asteroid

c)

Orbital Motion

d)

Planetoid

100.

An elongated circle, or oval shape, the shape of the planets orbit.

a)

Mass

b)

Asteroid

c)

Ellipse

d)

Planetoid

101.

The force of attraction between objects with mass.

a)

Mass

b)

Gravity

c)

Ellipse

d)

Distance

102.

The amount of matter in an object. (Greater mass = stronger gravity)

a)

Mass

b)

Gravity

c)

Ellipse

d)

Distance

103.

An amount of space between two things or people. (Greater distance = weaker gravity)

a)

Mass

b)

Gravity

c)

Ellipse

d)

Distance

104.

Objects made of ice, gas and dust and orbit the sun are called:

a)

Asteroids

b)

Comets

c)

Meteoroids

d)

Meteors

105.

Chunks of rock and metal and are believed to be left over pieces of planets and moons are called:

a)

Comets

b)

Meteors

c)

Asteroids

d)

Meteoroids

106.

The inner planets are called...

a)

rocky planets

b)

gas planets

107.

The furthest planet from the sun...

a)

Mercury

b)

Venus

c)

Neptune

d)

Jupiter

108.

The outer planets are called...

a)

gas planets

b)

rocky planets

c)

Jovian planets

109.

The inner planets are made up of...

a)

solid rock and metal

b)

ice and gas

110.

What separates the inner planets from the outer planets in the solar system?

a)

Asteroid Belt

b)

Asteroids

c)

Comets

d)

Kuiper Belt

111.

The outer planets all have

a)

rings

b)

moons

c)

water

d)

suns

112.

What is the largest planet in the solar system?

a)

Uranus

b)

Jupiter

c)

Saturn

d)

Neptune

113.

How many planets are there in our solar system?

a)

8

b)

9

c)

10

d)

7

114.

Uranus is the only planet that...

a)

lays on its side

b)

orbits rocks

c)

have 8 moons

115.

The four planets closest to the sun...

a)

Jupiter, Saturn, Uranus, Neptune

b)

Mars, Neptune, Earth, Venus

c)

Mercury, Venus, Earth, Mars

116.

Planets made up mainly of hydrogen, helium, and other gasses are called...

a)

gas giants/ ice giants

b)

rocky planets

117.

A large space rock orbiting the Sun

a)

Asteroid

b)

Meteor

c)

Meteorite

d)

Comet

118.

A region beyond Neptune containing many meteoroids and comets

a)

Kuiper Belt

b)

Solar System

c)

Oort Cloud

d)

Asteroid Belt

119.

A space rock that enters the Earth's Atmosphere but does not hit the surface

a)

Meteor

b)

Comet

c)

Meteoroid

d)

Meteorite

120.
When the Northern Hemisphere is pointing towards the sun, what season is it in the Southern Hemisphere?
a)
Winter
b)
Spring
c)
Fall
d)
Summer
121.
Waxing means...
a)
Growing
b)
Dying
c)
Losing light
d)
Moving
122.
When the moon is in between the earth and the sun it is a
a)
New Moon
b)
Full Moon
c)
First Quarter
d)
Third Quarter
123.
Name the moon phase
a)
waning crescent
b)
waxing crescent
c)
waning gibbous
d)
waxing gibbous
124.
Name the moon phase
a)
waning crescent
b)
waxing crescent
c)
waning gibbous
d)
waxing gibbous
125.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
126.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
127.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
128.
Name the moon phase
a)
First Quarter
b)
Third Quarter
c)
New Moon
d)
Full Moon
129.
Name the moon phase that would come AFTER this moon.
a)
waning crescent
b)
waxing crescent
c)
waning gibbous
d)
waxing gibbous
130.
What season is it in the Northern Hemisphere for letter A?
a)
Winter
b)
Summer
c)
Spring
d)
Fall
131.
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 and revolves around the Sun 
132.
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 get longer
d)
The Equator would burn up and the poles would freeze
133.
What is illuminating the Moon?
a)
Nuclear Fusion
b)
Sunlight
c)
Mirrors
d)
Flood Lights
134.
When the visible (lit) portion of the moon is increasing, the moon is:
a)
waning
b)
full
c)
waxing
d)
new
135.
The Moon orbits Earth in a ________________ direction
a)
clockwise
b)
counterclockwise
c)
upwards
d)
downwards
136.
Define Gibbous
a)
Less than half of moon visible
b)
More than half of moon visible
c)
All of moon visible
d)
None of moon visible
137.
The 1st Quarter moon is lit on the:
a)
Left Side
b)
Right Side
138.
Define Waning
a)
Moon appears to be gradually increasing in size
b)
Moon is completely illuminated
c)
Moon appears to be gradually decreasing in size
d)
More than half illuminated
139.
How long does it take for the Moon to make one full revolution around the Earth? 
a)
one day
b)
one month
c)
one year
d)
never
140.
If the last full moon was on April 4th, when can you expect to see the next full moon? 
a)
April 29th
b)
July 4th
c)
May 4th
d)
September 12th
141.
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.
142.
How much of the moon is always lit?
a)
can't tell
b)
always changes
c)
half
d)
3/4
143.
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.
144.
What are the reasons for the seasons?
a)
Earth's tilt and rotation.
b)
Earth's rotation and revolution.
c)
Earth's tilt and revolution.
d)
Earth's tilt and resolution
145.
The moon cycle (lunar cycle) takes approximately _______________ to complete.
a)
14 days
b)
28 days/approximately one month
c)
58 days
d)
1 week
146.
Why do we always see the same side of the moon from Earth?
a)
because the phases change
b)
because it rotates and revolves at the same rate
c)
because half of the moon always receives sunlight
d)
The moon changes positions�
147.
As the moon's shape appears to get smaller, we say that the moon is _.
a)
swelling
b)
waxing
c)
waning
d)
disappearing
148.
What season is it in the Southern Hemisphere when it is fall in the Northern Hemisphere?
a)
winter
b)
spring
c)
summer
d)
fall
149.
What event is shown in the figure?
a)
lunar eclipse
b)
solar eclipse
c)
tide formation
d)
sun spots
150.
What moon phase is at position 1? 
a)
new moon
b)
waxing gibbous
c)
waning gibbous 
d)
waning crescent 
151.
What moon phase is at position 6? 
a)
waxing crescent 
b)
waxing gibbous
c)
waning gibbous 
d)
waning crescent 
152.
What moon phase is at position 3? 
a)
waxing crescent 
b)
1st quarter
c)
3rd quarter 
d)
waning crescent 
153.
What moon phase is at position 4? 
a)
waxing crescent 
b)
waxing gibbous
c)
waning gibbous 
d)
waning crescent 
154.
What is the order during a solar eclipse
a)
sun, moon, earth
b)
sun, earth, moon
155.
This picture represents which moon phase?
a)
Waxing Gibbous
b)
Waning Crescent
c)
Waning Gibbous
d)
Waxing Crescent
156.
During a lunar eclipse, what color does the moon appear?
a)
Black
b)
Red-orange
c)
Yellow-green
d)
White
157.
A solar eclipse only happens during a ________ moon.
a)
New
b)
Cresent
c)
Gibbous
d)
Full
158.
A lunar eclipse only happens during a ________ moon.
a)
New
b)
Cresent
c)
Gibbous
d)
Full
159.
Why is a lunar eclipse very rare?
a)
It happens every new moon
b)
The moon's orbit is tilted, so the sun, moon and earth rarely line up
c)
The moon isn't close enough to the earth
d)
The earth isn't close enough to the sun
160.
In order to have an eclipse, the Moon, Sun and Earth have to be?
a)
Below each other
b)
Above each other
c)
In alignment/same plane
161.
Which of these best shows that the Earth revolves around the sun as the moon revolves around the Earth?
a)
Picture A
b)
Picture B
c)
Picture C
d)
Picture D
162.
Which of the following lists the Earth, Sun, and Moon in order of size, from largest to smallest?
a)
Earth, Sun, and Moon
b)
Earth, Moon, and Sun
c)
Sun, Earth, and Moon
d)
Sun, Moon, and Earth
163.
What is the imaginary line that passes through Earth’s center and the North and South poles?
a)
Axis
b)
Orbit
c)
North Pole
d)
South Pole
164.
According to Kepler, the paths of planets about the Sun are
a)
parabolas.
b)
circles.
c)
straight lines.
d)
ellipses

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