Plate Boundaries

3. opening in ground where magma escapes from a volcano.
4. Waves at surface, move in all directions.
9. where crust breaks during Earthquake.
11. Type of volcano that is small, steep sided, and made of ash and cinders.
13. plates move away
14. bowl shaped pit at the top of volcano.
15. plates grind past
16. Eruption that is thin and cools quickly.
18. plates come together

1. new crust is created as older moves away.
2. Eruption that is very hot and thick.
5. location on surface above focus.
6. oceanic crust is destroyed as it pushes into continental crust and sinks beneath trenches.
7. Waves under surface, travels FASTEST through rocks.
8. Type of volcano that is large, steep sided, explosive, and made of lava and ash.
10. Type of volcano that is wide, flat and formed from a quiet eruption.
12. Waves under surface, move SLOWEST in all directions.
17. Waves at surface, move side to side.