Solar System

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Across
  1. 3. a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
  2. 4. an object that moves around a larger object
  3. 7. the farthest planet from the sun.
  4. 9. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun.
  5. 10. the envelope of gases surrounding the earth or another planet.
  6. 13. the closest planet to the sun.
Down
  1. 1. a shining thing in space that looks small from the Earth.
  2. 2. There are eight of these in the solar system.
  3. 4. a big very hot star.
  4. 5. an eclipse in which the moon appears darkened as it passes into the earth's shadow.
  5. 6. the only planet life is on.
  6. 8. when the moon's shadow covers the sun making it dark outside.
  7. 11. this planet has eight main rings.
  8. 12. a vehicle that uses jet propulsion to accelerate without using the surrounding air.
  9. 13. the natural satellite of the earth, visible at night by reflecting light from the sun.