Across
- 2. this is what happens when a plate moves BELOW another plate. For example, oceanic plates subducting under continental plates creates above ground volcanos.
- 4. Heat & pressure do this, the further down you go from the Earth's crust to the core
- 5. this is created when 2 oceanic plates spread apart. Seafloor spreading happens, when is what happens when new seafloor is being created; like when the Atlantic Ocean began growing.
- 7. this part of the Earth's crust is found under the oceans AND is only about 5km thick.
- 8. the type of movement that happens when 2 or more things come together.
- 10. this is what is created when an oceanic plate moves below a continental plate, because the oceanic plate takes water with it; which mixes with magma.
- 15. this is a landform made when 2 continental plates crash into each other and an upheaval of land/rock happens.
- 17. sections of the Earth's crust that move, because of the convection currents in the mantle of the Earth
- 19. this layer of the Earth is solid in the upper and lower parts, and is liquid-like in the middle; because convection currents causes flowing of the material here.
- 20. a large break in the Earth's crust.
- 21. a vibration of the Earth's plates that is caused by 2 plates sliding past each other AND getting stuck on one another.
- 22. when convection currents do THIS, heat is taken away from the plates and the plates come closer together
Down
- 1. when convection currents do THIS, heat is added to the plates and the plates separate and move apart
- 3. this is created when an older oceanic plate moves below another younger oceanic plate. Because the plate takes water with it when it moves below, it mixes with magma.
- 6. this layer of the Earth's crust is solid, because there is SO MUCH heat and pressure, the nickel and iron metals are squeezed into a solid.
- 8. these are the heat waves that travel through the Earth's mantle, and allow the plates on the crust to move.
- 9. the type of movement that happens when 2 or more things spread apart.
- 11. this layer of the Earth is the only COMPLETELY liquid layer of the Earth. It is made of two metals: nickel and iron.
- 12. the movement of the Earth's crust upward. This upward motion creates mountains.
- 13. Heat & pressure do this, the further up you go from the Earth's core to the crust
- 14. this part of the Earth's crust is found under the continents AND is about 30km thick.
- 16. the layer of the Earth we live on. This is the outermost layer of the Earth.
- 18. this was the name of the Earth's continents, when all 7 of them were joined together, 200 million years ago.