How much do you know about the Sun? Test your knowledge by taking the Sun quiz. All you need to do is click on an answer for each question. Have fun!

1: What is the Sun?
a) A planet
b) An asteroid
c) A star

3: Which statement is true?
a) The Sun is a giant ball of burning gases
b) The Sun is rocky and dusty
c) The Sun has water on its surface

5: Which statement is true?
a) The solar system is made up of all the stars in the sky.
b) The solar system is made up of the Sun and all the
objects orbiting it.
c) The solar system is another name for the asteroid belt.

7: How long does it take the Sun to rotate, or spin around, once?
a) Nearly 1,000 Earth days
b) About 2 hours
c) About 25 Earth days

9: How far is Earth from the Sun?
a) Nearly 250,000 miles (400,000 km)
b) About 93 million miles (150 million km)
c) Over 100 trillion miles (160 trillion km)

11: What is the mission of the SDO probe?
a) To beam pictures of the Sun back to Earth
b) To explore the solar system
c) To see if aliens are using the Sun to beam messages to Earth

13: During a total eclipse of the Sun, what happens?
a) Day may seem to turn into night.
b) Clouds block out the Sun’s light.
c) Night may seem to turn into day.

15: Which statement is true?
a) A comet is another name for a solar flare.
b) A comet is another name for an asteroid.
c) A comet is an icy object that orbits the Sun.

17: Without the Sun, what would happen?
a) Earth would get light from the Moon.
b) No life on Earth would survive.
c) People would get more sleep.

19: Which statement is false?
a) The Sun is the largest star in space.
b) The Sun travels through space at 490,000 miles per hour
(790,000 km/h).
c) The Sun looks bigger than other stars because it is closest
to Earth.

2: How many planets orbit the Sun?
a) 7
b) 8
c) 14

4: How many Earths could fit into the Sun?
a) 1 million
b) 25
c) 50

6: What is a sunspot?
a) A place on the Sun that is cooler than the rest of the
Sun’s surface
b) A shadow on Earth
c) A large loop of super-hot gas erupting from the Sun
into space

8: Which statement is false?
a) The Sun can be studied using space probes.
b) Humans may someday land on the Sun.
c) Looking directly at the Sun will harm your eyes.

10: Which of these planets is closest to the Sun?
a) Mercury
b) Mars
c) Earth

12: When does an eclipse of the Sun happen?
a) When the Moon passes between Earth and the Sun.
b) When the Sun passes between Earth and the Moon.
c) When Earth passes between the Sun and the Moon.

14: How would the Sun look if viewed from Pluto?
a) Smaller than it appears from Earth
b) Larger than it appears from Earth
c) The same size as it appears from Earth

16: Which of these planets is farthest from the Sun?
a) Jupiter
b) Venus
c) Uranus

18: Which statement is true?
a) Most asteroids orbit the Sun in the asteroid belt.
b) Most asteroids are between Mercury and the Sun.
c) Most asteroids orbit Earth.

20: What did the ancient Romans call the Sun?
a) Sol
b) Gas
c) Sunday

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version of these questions.