Astronomy 25
  • 1. Billions of stars held together by gravity
A) super nova
B) constellation
C) galaxy
D) solar system
  • 2. All of space and everything in it
A) solar system
B) galaxy
C) mega verse
D) Universe
  • 3. Our sun looks bigger and brighter than other stars because
A) it's bigger than the other stars
B) Its closest to earth
C) It's different than all the other stars
D) The other stars are in another galaxy
  • 4. Name the order of the planets
A) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune
B) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
C) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Neptune, Uranus
D) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
  • 5. The theory that explains how the universe began
A) Big Pop
B) Big Bang
C) Supernova
D) Big Daddy
  • 6. A nebula is where
A) comets form
B) galaxies form
C) black holes form
D) stars are formed
  • 7. A planet closer to the sun has a shorter year than one father away because
A) its orbit is a shorter distance
B) because it has no moon.
C) because the inner planets are smaller
D) because the inner planets are made of rock
  • 8. Which planet is farthest from Earth?
A) Mercury
B) Venus
C) Uranus
D) Jupiter
  • 9. Comets are made of
A) clouds
B) real snow balls
C) rocks
D) frozen gas and dust
  • 10. Why is Earth unique in the solar system?
A) It has liquid water
B) All of these
C) It has life
D) It has oxygen to breath
  • 11. Why don't we have any pictures of our own galaxy?
A) It is moving too fast, so the picture would be blurry.
B) It's too dark
C) It only likes selfies.
D) We cannot get far enough away to take a picture of something so big.
  • 12. The time it takes a planet to rotate on its axis once is a _______ on that planet.
A) decade
B) month
C) day
D) year
  • 13. The major force that holds bodies in space together is
A) orbit speed
B) light-years
C) magnetism
D) gravity
  • 14. The motion of one body in space orbiting another body in space
A) revolution
B) retrograde
C) spinning
D) rotation
  • 15. Particles from the sun cause gases to glow in our atmosphere called
A) glow show
B) magnetic storm
C) fireworks
D) auroras
  • 16. The sun has more gravity than the planets because it ...
A) it is made of gas
B) is hot
C) is bigger
D) has the most mass
  • 17. A moon revolves around a
A) a star
B) planet
C) nothing
D) the asteroid belt
  • 18. Earth's rotation time is
A) causes seasons
B) 365 days
C) 24 hours
D) 1 year
  • 19. Large rock-like objects that are too small to be planets
A) asteroids
B) comets
C) exoplanets
D) meteorites
  • 20. The closer a planet is to the sun...
A) the faster it rotates
B) the longer the year
C) the faster it revolves around the sun
  • 21. The Earth's revolution time is
A) 24 days
B) 24 hours
C) a light year
D) 365 days
  • 22. Stars are made mostly of
A) carbon
B) hydrogen
C) methane
D) oxygen
  • 23. Earth's closet star is
A) the asteroid belt
B) the sun
C) the moon
D) Big Dipper
  • 24. The name of our galaxy is
A) Milky Way
B) Andromeda
C) Antares
D) Orion
  • 25. A planet revolves around a
A) star
B) pickle
C) moon
D) galaxy
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