Across
- 3. - the biggest layer of earths layers
- 8. - Consists of Australia, Antarcticaand South America
- 9. - The process in which one lithospheric plate collides with and is forced down under another plate and drawn back into the Earth's mantle
- 11. - places where plates slide sideways past each other
- 13. - The circular motion of liquids or gasses caused by density differences
- 15. - The theory that the configuration of Earth's continents was once different than it is today
- 17. - Formed when two continental plates collide
- 19. - happens in a trench
- 20. - the uppermost layer of earth
- 21. - created when a divergent boundary happens
Down
- 1. - supercontinent that was in form 300 million years ago
- 2. - The place where two plates meet.
- 4. - German who came up with the plate tectonics theory
- 5. isn’t declared a continent but close to a continent much like India
- 6. - a layer made of of iron
- 7. - boundary between two colliding plates
- 10. - boundary between two plates moving away from each other.
- 12. - happens in a trench
- 14. - North America, Greenland, Europe and Asia
- 16. - a supposition or a system of ideas intended to explain something
- 18. - liquid, spans from 7200–9000 degrees