Plate Tectonics
Across
- 3. a type of boundary that involves plates sliding against each other
- 7. the crust is divided into the continental and _______ crust
- 10. this is an example of what happens at divergent boundaries
- 12. scientist found theses on both Australia and southern Asia as evidence that the continents were once connected
- 13. forms as continental plates push against one another
- 15. a type of boundary where tectonic plates move into one another
- 16. this force causes denser material to fall
- 17. are caused when plates slide past one another;
Down
- 1. a large mountain range that lies underwater in between continents.
- 2. this layer contains parts that are moving at a slow rate
- 4. advancements in this area has allowed scientist to better understand plate movement
- 5. this layer of the Earth heats the mantle and causes denser magma to rise
- 6. this is a factor along with temperature that causes convection currents in the mantle
- 8. a type of boundary where plates are pushed away from one another
- 9. known as a super-continent where all the continents where one large landmass
- 11. this happens when hot material in the mantle rises reaches the surface cools and sinks back into the mantle; repeated cycle
- 14. made up of the crust and upper mantle; make up of plates that are broken into sections