SCI Earth Science W4
Across
- 3. Who proposed the theory of continental drift?
- 5. When an oceanic plate and continental plate converge, which plate will subduct?
- 7. The Mid-Atlantic Ridge was created by which boundary type?
- 8. Oldest rocks are - from the ocean ridge
- 10. Who proposed the theory of seafloor spreading?
- 13. The plates float on -?
- 14. Transforming plates are moving - to each other, in opposite directions.
- 15. Process of magma moving tectonic plates
- 16. When a plate sinks under another and melts into the mantle
- 18. Mineral that reacts to Earth's magnetic field
- 20. Cold sinks as it is -?
- 21. This is an example of continental and continental plates converging.
Down
- 1. This is an example of oceanic plate converging with oceanic plate
- 2. Plates merging together
- 4. Evidence of seafloor spreading with symmetrical alternating strips of rock
- 6. When oceanic and oceanic collide, it creates trenches and magma emerges creates volcanoes and an -?
- 9. This boundary type causes earthquakes
- 11. South America used to be connected to - in the supercontinent, before seafloor spreading.
- 12. Where magma emerges from in the seafloor
- 14. Supercontinent
- 17. The Earth's magnetic field - every few million years
- 19. The - Plate contains most of Asia and Europe