Book Report for Mrs. Boughton

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Across
  1. 2. million- Approx. How much gold has been found?
  2. 4. How much does the largest gold nugget weight?
  3. 5. an instrument for measuring magnetic force?
  4. 6. is the softest mineral?
  5. 7. How many elements make up Earth's rock?
  6. 8. Made of fresh waters of ice brought into the sea by breakup of glaciers.
  7. 10. Ice- The floating ice of both hemispheres.
  8. 13. crust- Made up if basalt rock made of silicate rich iron and magnesium?
  9. 15. Mantle- 83% of the total volume of Earth?
  10. 18. What is the hardest mineral?
  11. 19. How many minerals are on Earth?
Down
  1. 1. How much of Earth's rock is volcanic rock?
  2. 3. a measurement on a globe or map of location west or east?
  3. 9. is a measurement on a globe or map of location north or south?
  4. 11. Crystals- What are gymstones?
  5. 12. process- What do atmospheric scientists study?
  6. 14. Big pressure at the center of the center of the Earth?
  7. 16. of Faith- What is the name of the largest gold nugget?
  8. 17. What is the largest dimond ever found?
  9. 19. billion- How old are Earth's rocks?