Ella Travaso pd.1

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Across
  1. 3. closed-plane curve that results from the intersection of a plane cutting through a cone
  2. 4. a small piece of an asteroid
  3. 5. fundamental system in condensed matter sciences
  4. 7. a streak of light in the sky
  5. 8. small, icy object that orbits the sun and has a long "tail" of gas
  6. 12. rock-type object formed in the early solar system from collisions
  7. 13. the range of orbits around a star
  8. 14. orbits the sun
  9. 15. doughnut-shaped region of icy objects
  10. 16. orbital motion of a spatial body in a direction that is opposite of what is normal in a given system
  11. 18. measure of how non-circular the orbit of a body is
Down
  1. 1. large planet mostly composed of helium and/or hydrogen
  2. 2. a transient rain of meteors
  3. 6. mean distance between the center of the Earth and the center of the sun
  4. 9. Earth-like planets made up of rocks or metals with a hard surface
  5. 10. solid piece of debris from an object
  6. 11. region of space between the orbits of Mars and Jupiter where most of the asteroids in our Solar System are found orbiting the Sun
  7. 17. a very steep bank or slope