Density and the Earth

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Across
  1. 2. melted rock above Earth's surface
  2. 4. equipment that measures mass
  3. 5. a fracture in Earth's crust
  4. 7. also known as lithosphere
  5. 11. molten rock that supports the tectonic plates
  6. 12. the core element that makes our compasses work
  7. 13. how much space an object takes up
  8. 14. unit for volume
  9. 16. a scientist who studies the origin, structure, and forces of Earth
  10. 17. melted rock under Earth's surface
Down
  1. 1. decomposers that make earth out of rock
  2. 3. equipment that measures volume
  3. 6. unit for mass
  4. 8. when an object goes to the bottom of a fluid
  5. 9. means "to build"
  6. 10. how to describe Earth's core
  7. 15. when an object rises to the top of a fluid
  8. 18. how much matter is in an object