Earth Science

3. / The layer which is approximately 100km thick and covers the whole world
5. Tectonics / Theory of the plates movement and formation in which these plates cover the earth
6. / The centre of the Earth
7. / The name of the single continent
8. / A mountain that forms on the edge of the tectonic plates
10. / The layer of a hot semi-solid material that the earths crust floats on
13. Drift / The earths surface gradually moves from all the continents coming together
16. / The rapid movement of the ground and the rapid release of energy as plates move
17. / One of the Earths large landmasses

1. Spreading / The system of the youngest rocks of the ocean floor moving outward and at diverging point
2. / Is a large smooth mass displaced from it's original origin
3. Plates / The amount strong and moving pieces of the earths surface
4. / A large chamber that is inside of a cave
6. Boundaries / The forming of when two Lithospheric plates slide past each other
9. Boundaries / The forming of when two Lithospheric plates move apart
11. / The system of the forces of gravity pulling the heavier and more dense oceanic plate to under the less dense and lighter continental plate
12. Boundaries / The forming of when two Lithospheric plates come together
14. Crust / Is found at the ocean floor
15. / It lies beneath soil and is solid unweathered rock