Across
- 4. Formed when magma cools and solidifies
- 5. Several large slabs
- 9. Made up of two layers
- 10. Continuous process
- 11. Thickest layer
- 13. They crash into each other
- 14. Two additional layers
- 16. Formed by extreme heat and pressure
Down
- 1. moves apart from each other
- 2. building, Forms mountains
- 3. Plates that slide past each other
- 6. Trembling and shaking of the earth
- 7. Compaction and cementation
- 8. The meeting point of two tectonic plates
- 12. Lava erupts from it
- 15. Outermost layer