Plate Boundaries Puzzle

3. a continental rift, often referred to as a rift valley, forms where continental plates_______________.
7. the edges of tectonic plates are called _______________.
9. where oceanic plates converge, the _______________, denser plate subducts under the less dense plate.
10. when magma cools in a rift, it creates more _______________ in the gap between the plates. (one part of the Earth)
13. where plates _______________, earthquakes occur and volcanoes and mountains form.
14. plates move because of forces in the _______________.
15. movements of crust often result in _______________.
17. at_______________ boundaries, neighbouring plates are moving away from one another.

1. earthquakes send out _______________ waves when there is movement along transform boundaries.
2. at _______________ boundaries, neighbouring plates are moving toward one another.
4. at convergent boundaries, neighbouring plates are moving _______________ one another.
5. during subduction, magma that is less _______________ than the rest of the mantle rises to the surface.
6. oceanic plates are pulled _______________ continental plates.
8. _______________ is when one plate is pulled under another.
11. if magma reaches the surface without cooling and solidifying, it can break through in the form of _______________ eruptions.
12. where plates move apart,_______________ form.
14. The rifting of plates allows _______________ to move to the surface. (It's really hot.)
16. subduction under water creates a _______________ between the plates and a subduction zone below.
18. at _______________ boundaries, neighbouring plates are sliding past one another or locked in place as they are trying to slide past one another.