tectonic plates

3. A super continent that existed 250 million years ago which included most of the earth’s continental landmasses,
4. two plates moving away from each other, mantle,
7. The outermost shell of the earth,
10. magma when reaches earths surface,
11. Plates that are moving toward each other,
12. The process of wearing away or grinding something down,
13. hemispheric-scale long but narrow topographic depressions of the sea floor.
16. fossils found that prove existence of an old species
17. When one plate is forced beneath another into the mantle,

1. molten rock underground, ,
2. A sudden movement of the earth’s curst caused by stress along a geologic fault,
5. A vent in the crust of the Earth from which molten rock, ask and steam are ejected,
6. An area of stress in the earth where broken rocks slide past each other causing a crack in the Earth’s surface, lithosphere, The solid part of the earth consisting of the crust and the outer mantle,
8. Part of the earth that goes around the core and is solid
9. boundary where two plates slide against each other,
10. The solid part of the earth consisting of the crust and the outer mantle
11. Innermost part of the earth
14. rock that is formed when magma cools and hardens,
15. Continental land masses the move relative to one another,