Visitors from Space Comprehension
  • 1. He hit the ball with such _________ that you could hear the crack of the bat.
A) force
B) particles
C) loops
D) nucleus
  • 2. The center, or __________ of the star looked extremely bright.
A) particles
B) force
C) nucleus
D) solar wind
  • 3. Cowboy Charlie made huge __________ with his lasso.
A) particles
B) loops
C) fluorescent
D) nucleus
  • 4. The ___________ if a force from the Sun.
A) solar wind
B) nucleus
C) fluorescent
D) loops
  • 5. The sawdust _____________ flew around the garage when dad sawed the wood into pieces.
A) force
B) loops
C) nucleus
D) particles
  • 6. The new ____________ lights brighten up the classroom.
A) loops
B) force
C) fluorescent
D) solar wind.
  • 7. This selection is most like an informational book because it _____.
A) took place long ago
B) is written in the first person
C) tells how to make something
D) gives information about the solar system
  • 8. What does a comet look like in the sky?
A) a group of stars
B) the sun
C) a flaming ball
D) a full moon
  • 9. Long ago, why did people think a comet was a warning of something bad?
A) Earthquakes and floods occurred after a comet appeared.
B) Comets appeared in the sky suddenly.
C) People did not understand comets.
D) Bad things always happened after a comet appeared.
  • 10. A comet starts out as ______.
A) a snowball
B) a ball of frozen gases
C) a star
D) a planet
  • 11. Scientists who study the planets and stars are called ___.
A) doctors
B) dentists
C) astronauts
D) astronomers
  • 12. Where do scientists think a huge cloud of comets might be?
A) around the sun
B) between the planets
C) behind the moon
D) past the farthest planet
  • 13. The force that connects the solar system to the sun is called ______.
A) a planet
B) gravity
C) an asteroid
D) a coma
  • 14. The gas in the comet's coma can be compared to the gas in a ____________.
A) fluorescent light bulb
B) bulb shooting star
C) dirty snowball
D) solar wind
  • 15. The tails of comets are made of ______.
A) gas and dust
B) ice
C) rocks
D) fur
  • 16. What is the name of the "shooting stars" that burn up as they enter Earth's atmosphere?
A) asteroids
B) comets
C) meteors
D) boulders
  • 17. What is the name for the orbits that comets take around the sun?
A) years
B) periods
C) ellipses
D) loops
  • 18. The main purpose of this selection is to tell about________.
A) traveling comets that can change our lives
B) how to become an astronomer and learn to write books.
C) what comets are made of and how they move and change
D) when the next solar system will appear in the universe
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