Earth and Space Vocab

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Across
  1. 2. a naturally occurring aggregate of minerals
  2. 5. a natural force that pulls objects towards each other
  3. 8. the preserved remains, traces, or imprints of plants or animals that once lived on Earth
  4. 10. center of the Earth
  5. 12. the look and feel of a rock's surface
  6. 15. the amount of light a star gives off
  7. 16. long cylinders of ancient ice
  8. 17. Earth's outermost layer
  9. 19. molten rock beneath the Earth's surface
Down
  1. 1. a system that consists of a star and all the objects in space that revolve around the star
  2. 3. the layer of Earth below the crust
  3. 4. a group of stars that form pattern in the sky
  4. 6. a small object that revolves around a planet
  5. 7. the layer of wood that formed during the season in which the tree grows
  6. 9. the way a mineral breaks
  7. 11. the way a mineral reflects light from its surface
  8. 13. a large, ball-shaped object that orbits a star
  9. 14. a naturally formed, inorganic solid with a crystalline structure
  10. 18. the color of a mineral's powder