Earth & The Solar System

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Across
  1. 1. A relatively small, rocky body that travels through space
  2. 5. A rotating cloud of gas and dust from which the sun and planets formed
  3. 8. The path that a body follows as it travels around another body in space
  4. 11. One complete orbit
  5. 14. The spin of a body on its axis
  6. 15. A region of the solar system that starts just beyond the orbit of Neptune and that contains dwarf planets and other small bodies made mostly of ice
  7. 16. A small, rocky object that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter
  8. 17. The warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate energy
  9. 19. A large celestial body that is composed of gas and emits light
  10. 20. A celestial body that orbits the sun, is round because of its own gravity, and has cleared the neighborhood around its orbital path
  11. 21. A celestial body that revolves around a body that is greater in mass; a natural satellite
  12. 22. A force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases
Down
  1. 2. A spherical region that surrounds the solar system, that extends from the Kuiper belt to almost halfway to the nearest star, and that contains billions of comets
  2. 3. The _____________ point is the temperature and pressure at which a solid becomes a liquid
  3. 4. A natural or artificial body that revolves around a celestial body that is greater in mass
  4. 6. A mixture of gases that surrounds a planet, moon, or other celestial body
  5. 7. Distance from the sun that allows for liquid water
  6. 9. A bright streak of light that results when a meteoroid burns up in Earth's atmosphere
  7. 10. A small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun and that gives off gas and dust in the form of a tail as it passes close to the sun
  8. 12. The sun and all of the planets and other bodies that travel around it
  9. 13. The ___________ point is the temperature and pressure at which a liquid becomes a gas
  10. 18. The transfer of energy as electromagnetic waves