The Solar System Vocabulary

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Across
  1. 5. the part of the universe lying outside of the limits of the earths atmosphere.
  2. 6. the natural satellite of earth or any other planet.
  3. 8. the streak of light seen in the sky when a small meteoroid burns itself out.
  4. 9. the icy body that contain a solid nucleus made of water and other dark organic compounds orbiting the Sun.
  5. 11. Mercury, Venus, Earth, Mars
  6. 12. Jupiter, Saturn, Uranus, Neptune
  7. 14. any certain groupings of stars that form configurations of objects or creatures in the sky.
Down
  1. 1. any meteoroid that has fallen to the earths surface.
  2. 2. a small celestial body that revolves around the sun; also known as a planetoid.
  3. 3. the zone between the orbits of two planets that contains the majority of asteroids.
  4. 4. the sun and the celestial bodies moving about it.
  5. 7. all matter and energy, including Earth, the galaxies and the contents of space.
  6. 8. rocky or metallic fragment of an asteroid, comet or planet.
  7. 10. a relatively small celestial body moving in orbit around the sun or another star.
  8. 13. a cluster of stars, gas and dust.
  9. 15. any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources