Across
- 2. These ridges are formed when new crust is added.
- 3. Waves used to determine the Earths interior structure.
- 4. This property explains why continental plates float.
- 6. Plastic layer of the earth
- 7. The size of mineral crystals found in intrusive igneous rocks.
- 8. Earthquakes can occur at the edge of these plate boundaries.
- 10. These can form when plates collide.
- 12. This is the process that causes the magma to move.
- 14. This process holds the particles together in sedimentary rocks
- 15. Proposed the existence of Pangaea.
Down
- 1. These and fossils embedded in them are found in sedimentary rocks.
- 2. These rock can look very different after heat and pressure.
- 3. This occurs when oceanic crust meets a continental plate.
- 5. When this occurs at high temperature metamorphic rock turn into lava
- 9. They are evidence for continental drift.
- 11. This process is one step in the rock cycle.
- 13. this is one of the metal found in the Earths core.