Solar System Word Search - Maddy

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Across
  1. 2. Meteors appear to radiate and come down from the sky. Caused by the Earth going into an orbit of comets and the particles burning in Earth's atmosphere
  2. 6. Asteroid fragment
  3. 7. Streak of light
  4. 8. Ratio of the distance between the foci to the length of the major axis. It defines the shape of a planet's orbit.
  5. 9. Spherical object that has not cleared its orbit of debris
  6. 11. Main component of gas giant planets
  7. 12. Low, warm, dark-colored clouds that sink
  8. 13. Belt of ice and rock outside the orbit of Neptune
  9. 14. Formed through colliding particles, these could form planets through collisions
  10. 17. Line of cliffs by erosion. Mercury has a planet-wide system of these.
  11. 18. The part that hits the ground if the meteoroid doesn't burn up
Down
  1. 1. When it seems that a planet is moving backward in the sky
  2. 3. Four inner planets with solid, rocky surfaces
  3. 4. Small, icy bodies that have highly eccentric orbits and come from the Oort Cloud
  4. 5. Planet of helium and/or hydrogen. Examples are Jupiter and Saturn
  5. 10. Distance between the Sun and Earth
  6. 15. Oval shape that is centered on two points (called foci)
  7. 16. High, cool, light-colored clouds that rise