Chapter 7 Vocab:

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Across
  1. 1. the four largest moons around Jupiter
  2. 3. the planets closest to the sun
  3. 5. the time it takes an object to travel once around the sun
  4. 7. the 4th planet from the sun
  5. 9. When a planet's atmosphere traps in solar energy
  6. 10. an object that orbits the sun, has enough mass and gravity to make is spherical, but has other things in its orbit
  7. 12. small rocky particle that moves through space
  8. 14. a meteoroid that strikes the Earth's surface
  9. 15. the average distance fro the Earth to the Sun
  10. 16. the largest planet in the solar system
Down
  1. 2. a small, rocky object that orbits the sun
  2. 4. a small rocky and icy object that orbits the sun
  3. 5. the time it takes an object to complete one rotation
  4. 6. a round depression formed on the surface of a planet, moon, or space object
  5. 8. Known for its impressive ring system
  6. 11. the second planet from the sun
  7. 12. a meteorite that has entered Earth's atmosphere
  8. 13. the closest planet to the sun