Form 1 Midterm 2- Plate Tectonics
Across
- 3. Volcanoes are least likely to form at _ _ _ _ _ _ _ _ plate boundaries.
- 7. When the molten material from the mantle rises to the surface of the Earth, it is called _ _ _ _.
- 9. The outermost layer of the Earth is called the _ _ _ _ _.
- 10. A feature that may be found on the surface of the crust where part of one plate is submerged below another is called an _ _ _ _ _ _ _ trench.
- 12. The supercontinent which existed before the continents split up 250 million years ago was called _ _ _ _ _ _.
- 13. The hottest layer of the Earth is the _ _ _ _ _ core.
- 14. The upper layer of the mantle, below the lithosphere is called the _ _ _ _ _ _ _ _ _ _ _ _ _.
- 15. The main materials that make up the Earth’s crust are called Sima and _ _ _ _.
Down
- 1. The combination of the Earth’s Crust and upper part of the mantle are called the _ _ _ _ _ _ _ _ _ _ _.
- 2. The part of the crust which enters the mantle at the convergent plate boundary tends to melt and results in the formation of a _ _ _ _ _ _ _ in the crust above it.
- 4. The oceanic crust sinks below the continental crust at a _ _ _ _ _ _ _ _ _ _ zone.
- 5. The molten liquid within the mantle is called _ _ _ _ _.
- 6. The 2 types of crust are _ _ _ _ _ _ _ _ _ _ _ crust and oceanic crust.
- 8. When the crust is folded upwards at convergent plate boundaries, it results in the formation of fold _ _ _ _ _ _ _ _ _.
- 11. The plate which Saint Lucia is found on is called the _ _ _ _ _ _ _ _ _ plate.