Structure earth and tides (Pt 2)

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Across
  1. 3. The force that keeps Earth and its atmosphere together
  2. 4. Tides without power
  3. 6. Layer where humans live and weather happens
  4. 7. Harmful rays blocked by the ozone layer
  5. 8. Protective gas layer that blocks harmful UV rays
  6. 10. where tides occur
  7. 12. Earth layer made mostly of iron and nickel
  8. 13. Natural opening where magma escapes to the surface
  9. 17. The spinning of Earth on its axis
  10. 18. Tides these are what people call larger tides
  11. 19. The layer above the stratosphere
  12. 20. Hot melted rock that comes out of a volcano
Down
  1. 1. The rigid outer part of Earth made of crust and upper mantle
  2. 2. The atmospheric layer where airplanes often fly
  3. 5. Liquid metal layer surrounding the inner core
  4. 9. The gas humans need to breathe
  5. 11. Main gas found in Earth’s atmosphere
  6. 14. Earth layer made of solid rock and tectonic plates
  7. 15. Imaginary line that goes through the center of Earth
  8. 16. Thickest layer of Earth
  9. 19. Molten rock inside the mantle