Chapter 4: Earth and Space Vocabulary

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Across
  1. 2. A spacecraft that gathers data without a crew. (2 words)
  2. 6. An explosive eruption of waves and particles into space. (2 words)
  3. 10. Planet with observable rings made of ice, dust, and rock.
  4. 15. A large, round object that revolves around a star and has cleared the region around its orbit.
  5. 16. An event that occurs when Earth passes through the orbit of a comet. (2 words)
  6. 18. Furthest planet in our solar system, too far away to see without a telescope.
  7. 20. Any of the four closest planets to the sun.
  8. 22. An imaginary line around which an object spins
  9. 23. A frozen mass of different types of ice and dust orbiting the sun.
Down
  1. 1. A group of stars that forms a pattern.
  2. 3. The path an object takes as it revolves around a star, planet, or moon.
  3. 4. Planet sometimes called the "Red Planet."
  4. 5. A natural object that revolves around a planet.
  5. 7. One full orbit around the sun.
  6. 8. One Whole spin of an object on its axis.
  7. 9. Any of the four planets in our solar system beyond Mars. (2 words)
  8. 11. Largest planet in the solar system with many moons.
  9. 12. Only planet in our solar system that has liquid water on its surface.
  10. 13. A large, round object that revolves around the sun but has not cleared the region around its orbit. (2 words)
  11. 14. Smallest and closest planet to the sun.
  12. 17. Planet about the same size as Earth with atmosphere of hot, toxic clouds.
  13. 19. Gas giant that rotates on its side.
  14. 21. A rocky mass up to several hundred kilometers wide that revolves around the sun.(2 words)