Our Solar System Part One
  • 1. Which is a tool that astronomers use?
A) optical telescope
B) hammer
C) stethaschopenhagen
D) moon
  • 2. Which is a tool that astronomers use?
A) porsle sight
B) steth seeker
C) optical probe
D) radio telescope
  • 3. The optical teleschope was invented about how long ago?
A) 300 years ago
B) 200 years ago
C) 400 years ago
D) 100 years ago
  • 4. A radio teleschope collects what?
A) sound waves
B) radio waves
C) music
D) pictures of outerspace.
  • 5. What is something doing when it circles another object? It is.....
A) day
B) orbiting
C) rotating
D) circling
  • 6. What is a force that pulls objects to each other?
A) solar sytem
B) orbit
C) gravity
D) rotate
  • 7. What is the time that it takes the Earth to circle the sun once?
A) year
B) day
  • 8. What is the time that it takes the Earth to spin around once?
A) day
B) year
  • 9. There are _________ planets in the solar system.
A) nine
B) eight
C) 365 days
D) 10 (counting the sun)
  • 10. Every time the Earth orbits the sun, one _________ goes by
A) week
B) day
C) month
D) year
  • 11. Which planet is closest to the sun?
A) Mercury
B) Pluto
C) Earth
D) Venus
  • 12. Which planet is the biggest?
A) Earth
B) Jupiter
C) Mercury
D) Sun
  • 13. The moon shines.
A) True
B) False
  • 14. The solar system includes the planets that orbit _______.
A) nine planets
B) the sun
C) moons
D) once a year
  • 15. We first landed on the moon in.....
A) 1996
B) We haven't yet.
C) 2008
D) 1969
  • 16. How many phases ore there in a moon?
A) 4
B) 8
C) 10
  • 17. It takes about one ___________ for the moon to orbit the Earth.
A) week
B) month
C) 366 days during a leap year
D) 24 hours
  • 18. When the moon looks like a thick eyelash it is called a _____________ moon.
A) crescent
B) full
C) Gibbious
D) crater
  • 19. If Earth were the size of a basketball, the moon would be about the size of a ________________.
A) soccerball
B) pinpong ball
C) balloon
D) tennis ball
  • 20. The most common landforms on the moon are__________.
A) craters
B) lakes
C) rocks
D) mountians
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