Across
- 2. when opened, creates land underwater
- 5. melted metal,that's all you need to know
- 8. very upper part of mantle and part of crust
- 10. then earths tectonic plates move apart they create this
- 13. plates move vertically
- 14. circle cycle of heat
- 16. theory made by tectonic plate theory
Down
- 1. opposite type metal of number 5(property)
- 3. about 200km thick and apart of earth
- 4. small zone where one plate falls under another
- 6. opposite of number 12
- 7. how heavy something is
- 9. very big continent
- 11. same as 8 but a little bit further down
- 12. plates move together
- 15. just a little bit down after # 3