Our Solar System

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Across
  1. 1. A small body that generally revolves about the sun in an elongated orbit.
  2. 3. A solid celestial body that accumulated during the 1st stages of formation.
  3. 6. a small rocky body orbiting the sun.
  4. 9. a large body of matter in orbit around the sun or a star and thought to be developing into a planet.
Down
  1. 1. The fuzzy, gaseous component of a comet's head.
  2. 2. Small solid particles that have orbits in the solar system
  3. 4. Any portion of a meteoroid that survives its traverse through Earth's atmosphere and strikes Earth's surface.
  4. 5. The small heavy core of an atom that contains all of its positive charge and most of its mass.
  5. 7. a small rocky or metallic body in outer space.
  6. 8. Smooth areas of the moon formerly thought to be seas.