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Space Test

Total questions: 146

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

A light year is a unit appropriate for measuring which of the following characteristics of celestial bodies?

a)

Size of galaxies

b)

Mass of stars

c)

Time of planetary orbits

d)

Temperature of nebula


2.

Looking at the diagram shown, when white dwarf stars are compared to giant stars, white dwarfs have ___.

1.      Higher luminosity/brightness

2.      Lower luminosity/brightness

3.      Cooler temperatures

4.      Higher temperatures

a)

1 & 3 only

b)

1 & 4 only

c)

2 & 3 only

d)

2 & 4 only

3.

All observable objects outside our galaxy, when viewed from Earth, have their spectra shifted to slightly longer wavelengths.  This is sometimes called red-shift.  Astronomers have concluded that this is evidence that all objects in the universe are –

a)

Hotter than the sun.

b)

Moving away from each other.

c)

Older than our solar system.

d)

Absorbing radiation from the stars.

4.

Which statement correctly identifies the relationship between wavelength and energy?

a)

X-rays have smaller wavelengths and lower energy than ultraviolet waves.

b)

Visible light has longer wavelengths and higher energy than infrared waves.

c)

Radio waves have longer wavelengths and higher energy than gamma rays.

d)

Visible light has shorter wavelengths and higher energy than radio waves.

5.

What force is responsible for these orbiting motions?

a)

A.      Electricity

b)

B.      Friction

c)

C.      Gravity

d)

D.     Magnetism

6.

The most common element in a star, such as the Sun, is

a)

A.      Oxygen

b)

B.      Carbon

c)

C.      Hydrogen

d)

D.     Helium

7.

Proxima Centauri is a star that is 4.2 light years from Earth.  Based solely on this information, which of the following conclusions can be drawn?

a)

The diameter of this star is more than four times larger than the Sun.

b)

Light we see from the star took more than four years to reach Earth.

c)

This star takes a little more than four years to make one rotation.

d)

The gravity of this star would make an object weigh four times more than on Earth.

8.

Which of these sequences the stars from least to greatest in absolute magnitude or luminosity?

a)

A.      Sirius B, Spica, Capella, Deneb

b)

B.      Capella, Deneb, Sirius B, Spica

c)

C.      Capella, Sirius B, Deneb, Spica

d)

D.     Sirius B, Capella, Spica, Deneb

9.

A celestial body moving in an elliptical orbit around a star is called a what?

a)

Alien

b)

Moon

c)

Star

d)

Planet

10.

The Earth revolves around its _____ once very 24 hours.

a)

Tilt

b)

Axis

c)

Side

d)

Revolution

11.

The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.

a)

Orbit

b)

Circle

c)

Rotation

d)

Revolution

12.

A celestial body that makes an orbit around a planet, including the eight major planets, dwarf planets, and minor planets

a)

Sun

b)

Star

c)

Planet

d)

Moon

13.

A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

a)

Solar System

b)

Universe

c)

Galaxy

d)

Planet

14.

The object's orbital motion around another object.

a)

Rotation

b)

Orbit

c)

Axis

d)

Revolution

15.

All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

a)

Galaxy

b)

Planet

c)

Solar System

d)

Universe

16.

A fixed luminous point in the night sky which is a large, remote incandescent body like the sun.

a)

Planet

b)

Comet

c)

Star

d)

Moon

17.

The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.

a)

Planet

b)

Solar System

c)

Galaxy

d)

Universe

18.

What force holds the planets in motion around the sun?

a)

Magnetic

b)

Electrical

c)

Gravitational

d)

Air Resistance

19.

Asteroids are composed mostly of _________.

a)

ice

b)

dirt

c)

rock

d)

gas

20.

Who came up with the "Universal Law of Gravitation"?

a)

Albert Einstein

b)

Thomas Edison

c)

Edwin Hubble

d)

Sir Isaac Newton

21.

Which statement is true?

a)

Objects with more mass have less gravity.

b)

Objects with more mass have more gravity.

c)

Objects are only attracted to each other if they have high masses.

d)

Distance is the most important factor in gravity.

22.

This type of galaxy has arms that come out from the center.

a)

Elliptical

b)

Spiral

c)

Irregular

23.

This type of galaxy is made of mostly old stars.

a)

Elliptical

b)

Spiral

c)

Irregular

24.

This type of galaxy is made of mostly young stars.

a)

Elliptical

b)

Spiral

c)

Irregular

25.

Which of the following is smaller than the Sun?

a)

blue supergiant

b)

red supergiant

c)

white dwarf

d)

yellow giant

26.

Which of the following would be the hottest temperature?

a)

red supergiant

b)

yellow giant

c)

blue supergiant

d)

orange giant

27.

Which stage is NOT part of a lower-mass star's life cycle?

a)

main sequence

b)

giant star

c)

supernova

d)

white dwarf

28.

How long does it take the Earth to rotate once on the axis?

a)

48 hours

b)

24 hours

c)

36 hours

d)

12 hours

29.

Name the 4 outer planets

a)

Jupiter, Saturn, Uranus, Neptune

b)

Earth, Mars, Venus, Mercury

c)

Pluto, Eris, Haumea, Makemake

d)

Sun, Moon, Earth, Mars

30.

A person who studies the universe and everything in it

a)

astronomer

b)

geologist

c)

biologist

d)

meteorologist

31.

What is the term that describes a star and everything that orbits that star

a)

galaxy

b)

planetary system

c)

universe

d)

solar system

32.

Name three types of galaxies

a)

Spiral, Elliptical, Irregular

b)

Cylindrical, Pyramidal, Pyramidal

33.

What is it called when an extremely massive star explodes

a)

Quasar

b)

Nova

c)

Supernova

d)

Black Hole

34.

what is a light year

a)

A light year is a measure of time used in physics.

b)

A light year is a type of star found in the galaxy.

c)

A light year is the speed at which light travels.

d)

A light year is a unit of distance used in astronomy to measure how far light travels in one year.

35.

Millions or billions of stars held up together by gravity is called

a)

nebula

b)

star cluster

c)

constellation

d)

galaxy

36.

Name the star that is the center of our solar system

a)

Moon

b)

Earth

c)

Sun

d)

Mars

37.

What is the name of the chart that graphs a star's brightness and temperature

a)

Kepler diagram

b)

Galactic map

c)

Stellar classification chart

d)

Hertzsprung-Russell diagram

38.

Name the four inner planets

a)

Mercury, Venus, Earth, Jupiter

b)

Pluto, Eris, Haumea, Makemake

c)

Jupiter, Saturn, Uranus, Neptune

d)

Mercury, Venus, Earth, Mars

39.

What galaxy do we live in?

a)

Milky Way

b)

Andromeda

c)

Bay Harbor

d)

Triangulum

40.

The spinning motion of a planet on its axis

a)

Revolution

b)

Orbit

c)

Translation

d)

Rotation

41.

the action of one object completely moving around another object in an orbital path

a)

Revolving

b)

Circling

c)

Orbiting

d)

Spinning

42.

What is the term that represents a huge sphere of gas held together by gravity

a)

comet

b)

star

c)

planet

d)

moon

43.

What tool do astronomers use to study distant objects in space

a)

Spectrometers

b)

Microscopes

c)

Telescopes

d)

Binoculars

44.

The imaginary line that runs through both poles of a planet

a)

Tropic of Cancer

b)

Prime Meridian

c)

Axis

d)

Equator

45.

About how long does it to Earth to revolve once around the Sun?

a)

360 days

b)

366 days

c)

365 days

46.

What term describes an area in space with gravity so strong that nothing can escape its pull

a)

neutron star

b)

red giant

c)

white dwarf

d)

black hole

47.

What characteristic do astronomers use to classify galaxies

a)

Color and brightness

b)

Distance from Earth

c)

Shape

d)

Temperature and age

48.

What key term describes all of space and everything in it

a)

galaxy

b)

planet

c)

solar system

d)

universe

49.

Spectral class

a)

Spectral class refers color of the stars determined by their wavelengths invisible light

b)

Spectral class is a measure of a star's brightness.

c)

Spectral class categorizes planets based on their size.

d)

Spectral class is used to determine the age of a star.

50.

Most stars are in what part of the HR-diagram?

a)

Supernova remnants

b)

White dwarfs

c)

Main sequence

d)

Red giants

51.

What part of the HR-Diagram are the brightest and hottest stars?

a)
Upper left part of the HR-Diagram
b)
Lower right part of the HR-Diagram
c)
Center of the HR-Diagram
d)
Lower left part of the HR-Diagram
52.

Luminosity

a)
Luminosity refers to the brightness of a star as seen from Earth.
b)
Luminosity is the total energy output of an astronomical object.
c)
Luminosity is the temperature of an astronomical object.
d)
Luminosity is the distance from an astronomical object to Earth.
53.

The surface temperature of a star is measured in

a)

Celsius (C)

b)

Kelvin (K)

c)
Rankine
d)
Fahrenheit
54.

Luminosity is measured in

a)
decibels (dB)
b)

Solar units

c)
lumens (lm)
d)
joules (J)
55.

What is spectral class

a)
A method to measure star brightness.
b)
A system for categorizing planets by size.
c)
A classification of galaxies based on their shape.
d)
A classification system for stars based on their temperature and spectral characteristics.
56.

In which direction do planets orbit the Sun?

a)
Randomly
b)
In elliptical paths
c)
Counterclockwise
d)
Clockwise
57.

Which Planet is the hottest?

a)
Mars
b)
Jupiter
c)
Mercury
d)
Venus
58.

Which planet is the largest?

a)
Saturn
b)
Mars
c)
Earth
d)
Jupiter
59.

Which planet is the closest to the Sun?

a)
Venus
b)
Earth
c)
Mars
d)
Mercury
60.

What does Earth have that our Moon doesn't

a)
Rings
b)
Moons of its own
c)
An atmosphere
61.

What causes planets and moons to shine?

a)
Planets and moons shine due to the reflection of sunlight.
b)
They shine due to volcanic activity.
c)
They are illuminated by artificial satellites.
d)
They emit their own light like stars.
62.

What planet takes the longest to orbit the sun?

a)
Venus
b)
Mars
c)
Earth
d)
Neptune
63.

What orbits Earth the same way Earth orbits the Sun?

a)
Venus
b)
The Moon
c)
Mars
d)
Jupiter
64.

What would change if Mars' surface had less iron?

a)

Mars would appear less reddish

b)
Mars would be covered in ice instead of dust.
c)
Mars would have a thicker atmosphere with more clouds.
d)
Mars would become more habitable for humans.
65.

What can be found in the Kuiper belt?

a)
Black holes and neutron stars
b)
Dwarf planets, comets, and icy bodies.
c)
Asteroids and meteoroids
d)
Gas giants and stars
66.

What is a characteristic of a terrestrial planet

a)
Gaseous atmosphere
b)
Liquid surface
c)
High gravity
d)
Solid, rocky surface
67.

Where are terrestrial planets located in our solar system

a)
The terrestrial planets are located in the inner solar system.
b)
The terrestrial planets orbit around the Sun in a circular path.
c)
The terrestrial planets are found in the asteroid belt.
d)
The terrestrial planets are located in the outer solar system.
68.

What type of planets are located in the outer solar system.

a)
Gas giants and ice giants
b)
Rocky planets
c)
Dwarf planets
d)
Terrestrial planets
69.

Is the Sun a star?

a)
Yes, the Sun is a star.
b)
The Sun is a comet.
c)
No, the Sun is a planet.
70.

The distance from the Sun to where 92 million miles is

a)

Venus

b)

The Moon

c)

Jupiter

d)

Earth

71.

Which is large a light year or 1 AU

a)
1 AU is larger than a light year.
b)
A light year is larger than 1 AU.
c)
1 AU and a light year are the same size.
d)
A light year is smaller than 1 AU.
72.

Why do are light years used instead of miles?

a)
Light years are used because they are easier to calculate than kilometers.
b)
Miles are more accurate for measuring distances in space.
c)
Light years are a unit of time, not distance.
d)

Light years are used because space is so big

73.

What is an asteroid

a)
An asteroid is a small rocky body that orbits the Sun.
b)
A large gas giant that orbits the Sun.
c)
A planet that is smaller than Earth.
d)
A type of comet made of ice and dust.
74.

What is a dwarf planet

a)
A dwarf planet is a celestial body that orbits the Sun and is not a full-fledged planet.
b)
A dwarf planet is a moon that orbits a planet.
c)
A dwarf planet is a large asteroid that orbits Mars.
d)
A dwarf planet is a type of star.
75.

What is a comet

a)
A comet is a small icy body in space that, when close to the Sun, develops a tail and a coma.
b)
A comet is a large rock that orbits the Earth.
c)
A comet is a planet made entirely of gas and dust.
d)
A comet is a type of star that shines brightly in the night sky.
76.

What is a meteor

a)
A meteor is a small celestial body that burns up in the Earth's atmosphere.
b)
A meteor is a solid object that travels through space without burning up.
c)
A meteor is a type of star that emits light.
d)
A meteor is a large planet orbiting the sun.
77.

What are galaxy clusters?

a)
Galaxy clusters are large groups of galaxies held together by gravity.
b)
Small groups of stars orbiting a black hole.
c)
Clusters of planets within a solar system.
d)
Isolated galaxies with no gravitational influence.
78.

Why is Pluto no longer considered a planet?

a)

Pluto is no longer considered a planet because it isnt large enough

b)
Pluto was discovered after the other planets were named.
c)
Pluto is too far from the Sun to be a planet.
d)
Pluto was reclassified due to its small size.
79.

What are the Voyager and Pioneer Probes?

a)
The Voyager and Pioneer Probes are robotic landers on Mars.
b)
The Voyager and Pioneer Probes are military satellites used for surveillance.
c)
The Voyager and Pioneer Probes are NASA space missions designed to explore the outer planets and interstellar space.
d)
The Voyager and Pioneer Probes are weather monitoring devices on Earth.
80.

What is accuracy?

a)

Accuracy is getting as close as possible to the correct answer

b)
Accuracy is the total number of instances predicted.
c)
Accuracy measures the speed of predictions.
d)
Accuracy is the difference between predicted and actual instances.
81.

When repeated measurements are very close to each other

a)
High precision
b)
Inconsistent results
c)
High variability
d)
Low accuracy
82.

Who was Copernicus

a)
Copernicus was a mathematician who invented calculus.
b)
Copernicus was a famous painter known for his landscapes.
c)
Copernicus was a medieval philosopher who rejected scientific inquiry.
d)

Copernicus was a Renaissance astronomer known for developing the theory that the Sun was the Center of the Universe

83.

In a GEOCENTRIC model the Sun resolves around

a)
the Milky Way
b)
the Earth
c)
Mars
d)
the Moon
84.

According to Copernicus the rising and setting of the Sun is due to

a)
the rotation of the Earth on its axis
b)
the movement of the Sun across the sky
c)
the gravitational pull of the Moon
d)
the orbit of the Earth around the Sun
85.

What are Epicycles?

a)
Epicycles are circular orbits used in ancient astronomy to explain the motion of planets.
b)
Epicycles refer to the phases of the moon.
c)
Epicycles are used to describe ocean currents.
d)
Epicycles are a type of star formation.
86.

Geo is a prefix for

a)
water
b)
fire
c)
air
d)
earth
87.

Helio is a prefix for

a)
moon
b)
star
c)
earth
d)
sun
88.

Stars are made up of mostly two types of gases

a)
Oxygen and nitrogen
b)
Carbon dioxide and methane
c)
Hydrogen and helium
d)
Argon and neon
89.

Do all stars shine equally?

a)
Yes, all stars shine equally.
b)
Some stars shine brighter than others, but they all shine equally.
c)
All stars shine only during the night.
d)
No, all stars do not shine equally.
90.

The measure of how much energy or light a star shines from its surface is called

a)
luminosity
b)
intensity
c)
magnitude
d)
brightness
91.

Bigger stars glow brighter than smaller stars

a)
True
b)
False
92.

When astronomers measure how bright a star is from a distance is called

a)
luminosity
b)
absolute magnitude
c)
stellar brightness
d)
apparent magnitude
93.

All stars glow because of

a)
nuclear fusion
b)
chemical reactions
c)
magnetic fields
d)
gravitational collapse
94.

Why does the Hubble Space Telescope images show what objects looked like a long time ago?

a)
Hubble images only show nearby objects in the universe.
b)
Hubble images show objects as they are currently seen.
c)
Hubble images show objects as they were in the past because light from those objects takes time to reach us.
d)
Hubble images capture the light emitted by objects in real-time.
95.

The gyroscopes on the Hubble Space Telescope are use to

a)
increase speed and maneuverability
b)
power the telescope's instruments
c)
control the temperature of the telescope
d)

maintain orientation and stabilize position. To steer it

96.

How do scientist know that the Sun is a middle aged star?

a)

How bright it is

b)

By how fats it spins

c)

How big it is

d)

By the wrinkles on its surface

97.

Why are you seeing the past when you look at the stars in the sky?

a)
The stars are reflections of past events on Earth.
b)
We see the past because stars are actually time machines.
c)
The stars emit light that is always current and immediate.
d)
We see the past because light from stars takes time to travel to Earth.
98.

Optical telescopes detect what type of light

a)
Visible light
b)
Radio waves
c)
Ultraviolet light
d)
Infrared light
99.

What is visible light

a)
Visible light is a type of sound wave.
b)
Visible light is only found in the infrared spectrum.
c)
Visible light is a form of chemical energy.
d)
Visible light is the electromagnetic radiation that can be detected by the human eye.
100.

What is the term for the path that a celestial body follows as it moves around another body in space?

a)

Trajectory

b)

Orbit

c)

Course

d)

Route

101.

Which planet is known as the 'Red Planet' due to its reddish appearance?

a)

Saturn

b)

Mars

c)

Jupiter

d)

Venus

102.

What is the name of the phenomenon when the moon passes directly between the Earth and the Sun, blocking the Sun's light?

a)

Full Moon

b)

Solar Eclipse

c)

Lunar Eclipse

d)

New Moon

103.

nuclear fusion occurs when

a)
two light atomic nuclei combine to form a heavier nucleus
b)
two heavy atomic nuclei split apart
c)
two atomic nuclei collide without any reaction
d)
a single atomic nucleus decays into two lighter nuclei
104.

What are sun spots

a)
Sunspots are caused by solar flares.
b)
Sunspots are dark spots on the Sun's surface caused by magnetic activity.
c)
Sunspots are bright areas on the Sun's surface.
d)
Sunspots are clouds of gas surrounding the Sun.
105.
Most asteroids in our solar system revolve around a zone called the asteroid belt. Where is the asteroid belt located?
a)
Between the orbits of Earth and Mars
b)
Between the orbits of Jupiter and Saturn
c)
Between the orbits of Uranus and Neptune
d)
Between the orbits of Mars and Jupiter
106.
Pieces of space rock that are too small to be planets or dwarf planets but still revolve around the sun
a)
Comets
b)
Asteroids
c)
Meteoroid
d)
Meteor
107.
Large clump of ice, dust, and small rock particles that has a tail and orbits the sun on a long path
a)
asteroids
b)
meteor
c)
comet
d)
planet
108.
The tail of a comet if made of
a)
gases
b)
pieces of rock
109.
Pieces of rock or dust in space that come from asteroids or comets
a)
meteoroid
b)
moon
c)
comet
d)
star
110.
A meteoroid is a chunk of rock traveling through the solar system. How is a meteorite related to a meteoroid?
a)
A meteorite is a meteoroid that enters Earth’s atmosphere.
b)
A meteorite is a meteoroid that has broken into smaller pieces.
c)
A meteorite is a meteoroid that is larger in size than an asteroid.
d)
A meteorite is a meteoroid that reaches the surface of Earth.
111.
While looking at the sky one night, Bevan saw a streak of light like the one below. Bevan’s father told him that the light was produced by a small chunk of rock passing through Earth’s atmosphere. Which of these terms best describes what Bevan saw?
a)
Asteroid
b)
Comet
c)
Meteor
d)
Meteorite
112.

What causes day and night?

a)

The sun's ROTATION

b)

The tilt of the earth on its axis

c)

The earth's ROTATION on its axis every 24 hours

113.

What is a REVOLUTION?

a)

When one object orbits around another object

b)

When one object rotates in place on an axis

c)

When two objects spin around each other

114.

What is a ROTATION?

a)

When one object orbits around another object.

b)

When one object spins around on its axis

c)

When two objects move around each other

115.

How long does it take Earth to make one REVOLUTION AROUND the Sun?

a)

24 hours (one day)

b)

365 days (one year)

c)

11 days

116.

What is the Sun?

a)

An aestroid

b)

A star

c)

A planet

117.

Which is the third planet from the sun?

a)

Mercury

b)

Venus

c)

Earth

118.

The sun is a planet.. True or False?

a)

True

b)

False

119.
the star at the center of the Solar System that supplies heat and light to earth; its enormous gravity keep the Solar System in orbit.
a)
satellite
b)
sun
c)
craters
d)
moon
120.
a line, real or imaginary, around which something spins
a)
orbit
b)
rotate
c)
gravity
d)
axis
121.
What is the name of the model in which the Sun is in the middle of the Solar System?
a)
Solarcentric
b)
Suncentric
c)
Geocentric
d)
Heliocentric
122.
What did Copernicus discover?
a)
The Earth is at the center of the Solar System
b)
The Sun is at the center of the Solar System
c)
The Moon is at the center of the Solar System
d)
There is a black hole in the center of the Solar System
123.
Who was the first person to use a telescope to observe objects in space?
a)
Ptolemy
b)
Copernicus
c)
Galileo
d)
Kepler
124.
What shape are the orbits of most comets?
a)
Circle
b)
Square
c)
Ellipse 
d)
Triangle
125.
What type of galaxy has spiral arms that are made up of gas, dust, and new stars that have formed?
a)
Spiral 
b)
Eliptical
c)
Regular
d)
Irregular
126.
What is the name of the model in which the Earth is at the center of the Solar System?
a)
Geocentric
b)
Heliocentric
c)
Earthcentric
d)
Landcentric 
127.
Which term below is a relatively small, rocky body that travels through space?
a)
Asteroid
b)
Meteoroid
c)
Meteorite
d)
Meteor
128.
What type of galaxy has a very bright center  and very little dust and gas?
a)
Spiral
b)
Elliptical
c)
Regular
d)
Irregular
129.
What type of galaxy doesn't fit into any other class?
a)
Spiral
b)
Elliptical
c)
Regular
d)
Irregular
130.
What type of galaxy is the Milky Way?
a)
Spiral
b)
Elliptical
c)
Regular
d)
Irregular
131.
What term describes the theory that states the universe began with a tremendous explosion?
a)
The Loud Crash Theory
b)
The Big Bang Theory
c)
The Tremendous Explosion Theory
d)
The Big Boom Theory
132.
What term describes a small body of ice, rock, and comic dust loosely packed together?
a)
Meteorite
b)
Asteroid
c)
Comet
d)
Meteoroid
133.
Which scientist helped explain that gravity is why all the planets orbit the Sun?
a)
Kepler
b)
Galileo
c)
Copernicus
d)
Newton
134.
Which scientist found that the planets orbit the sun with an elliptical orbit?
a)
Kepler
b)
Newton
c)
Ptolemy
d)
Galileo
135.

How many planets are there in the Solar System?

a)

Nine

b)

Fifteen

c)

Eight

d)

Eleven

136.

What is the shape of the planets?

a)

A square

b)

Triangular

c)

Spherical

d)

A circle

137.

One full orbit is called a...

a)

Axis

b)

Rotation

c)

Inertia

d)

Revolution

138.

Based on the data in the table, which conclusions can you draw?

a)

Uranus is the coldest of all the planets

b)

The farther a planet is from the Sun, the longer it takes to orbit it.

c)

A day on Earth is longer than a day on Saturn.

d)

The farther a planet is from the Sun, the shorter its day.

139.

All the planets in the solar system orbit the sun. What is the main difference between the orbits of the inner and outer planets?

a)

The outer planets take longer to orbit the sun than the inner planets do.

b)

The outer planets rotate as they orbit the sun, and the inner planets do not.

c)

The inner planets travel a greater distance than the outer planets do.

d)

The inner planets and outer planets orbit in different directions.

140.

Which is the following is arranged from biggest to smallest?

a)

Universe, constellation, galaxy, solar system

b)

Galaxy, constellation, universe, solar system

c)

Universe, galaxy, constellation, solar system

d)

Galaxy, universe, constellation, solar system

141.

List the 8 planets in order

a)

Mercury, Earth, Mars, Jupiter, Saturn, Uranus, Venus, Neptune

b)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

c)

Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune

d)

Mars, Venus, Earth, Mercury, Saturn, Jupiter, Uranus, Neptune

142.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

143.

What type of galaxy is this?

a)

Spiral

b)

Elliptical

c)

Irregular

144.

What is the name of the force that keeps planets in orbit around the sun?

a)

Gravitational force

b)

Magnetic force

c)

Electromagnetic force

d)

Nuclear force

145.

Which planet is known as the 'Red Planet'?

a)

Mars

b)

Venus

c)

Jupiter

d)

Saturn

146.

What is the term for a small body of matter from outer space that enters the earth's atmosphere?

a)

Comet

b)

Satellite

c)

Meteor

d)

Asteroid

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