About this Study Set
This study set covers Astronomy Basics through
18 practice questions.
Test your basic knowledge of planets, stars, and the universe in this easy-to-understand quiz. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Cosmic Facts: An Easy Quiz study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the largest planet in our solar system?
-
A
Earth
-
B
Mars
-
C
Jupiter
-
D
Saturn
2
Which planet is known as the 'Red Planet'?
-
A
Venus
-
B
Mars
-
C
Mercury
-
D
Uranus
3
What is the name of the star at the center of our solar system?
-
A
Sirius
-
B
Alpha Centauri
-
C
The Sun
-
D
Polaris
4
Which planet is famous for its prominent rings?
-
A
Jupiter
-
B
Uranus
-
C
Neptune
-
D
Saturn
5
What celestial bodies orbit planets?
-
A
Asteroids
-
B
Comets
-
C
Moons
-
D
Stars
6
Which is the closest planet to the Sun?
-
A
Venus
-
B
Earth
-
C
Mercury
-
D
Mars
7
What is the name of our galaxy?
-
A
Andromeda
-
B
The Milky Way
-
C
Triangulum
-
D
Whirlpool
8
What causes day and night on Earth?
-
A
The Moon's orbit
-
B
The Earth's rotation
-
C
The Sun's orbit
-
D
Earth's tilt
9
Which planet is often called Earth's 'twin' due to its size and mass?
-
A
Mercury
-
B
Mars
-
C
Venus
-
D
Jupiter
10
What is the name of the force that keeps planets in orbit around the Sun?
-
A
Magnetism
-
B
Electricity
-
C
Friction
-
D
Gravity
11
Which planet is known for having the most extreme temperatures, both hot and cold?
-
A
Earth
-
B
Mercury
-
C
Venus
-
D
Mars
12
What are large, rocky objects that orbit the Sun, mostly found between Mars and Jupiter?
-
A
Comets
-
B
Meteoroids
-
C
Asteroids
-
D
Dwarf planets
13
Which planet spins on its side?
-
A
Saturn
-
B
Jupiter
-
C
Neptune
-
D
Uranus
14
What is the name given to a region of space where gravity is so strong that nothing, not even light, can escape?
-
A
Nebula
-
B
Quasar
-
C
Black hole
-
D
Supernova
15
What is the brightest object in our night sky after the Moon?
-
A
Venus
-
B
Mars
-
C
Jupiter
-
D
Sirius
16
Which planet has the most prominent and visible polar ice caps?
-
A
Earth
-
B
Mars
-
C
Venus
-
D
Jupiter
17
What is a collection of billions of stars, gas, and dust held together by gravity?
-
A
Planet
-
B
Nebula
-
C
Galaxy
-
D
Constellation
18
What is the name of the only planet in our solar system known to support life?
-
A
Mars
-
B
Venus
-
C
Earth
-
D
Europa
