Our Solar System Part One
- 1. Which is a tool that astronomers use?
A) optical telescope
B) stethaschopenhagen
C) moon
D) hammer
- 2. Which is a tool that astronomers use?
A) radio telescope
B) steth seeker
C) optical probe
D) porsle sight
- 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) radio waves
B) sound waves
C) pictures of outerspace.
D) music
- 5. What is something doing when it circles another object? It is.....
A) day
B) orbiting
C) circling
D) rotating
- 6. What is a force that pulls objects to each other?
A) gravity
B) solar sytem
C) orbit
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) year
B) day
- 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) month
B) day
C) week
D) year
- 11. Which planet is closest to the sun?
A) Venus
B) Earth
C) Mercury
D) Pluto
- 12. Which planet is the biggest?
A) Jupiter
B) Sun
C) Earth
D) Mercury
- 14. The solar system includes the planets that orbit _______.
A) moons
B) the sun
C) nine planets
D) once a year
- 15. We first landed on the moon in.....
A) 2008
B) 1969
C) We haven't yet.
D) 1996
- 16. How many phases ore there in a moon?
A) 10
B) 4
C) 8
- 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) crater
C) full
D) Gibbious
- 19. If Earth were the size of a basketball, the moon would be about the size of a ________________.
A) balloon
B) soccerball
C) tennis ball
D) pinpong ball
- 20. The most common landforms on the moon are__________.
A) rocks
B) lakes
C) mountians
D) craters
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