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