Plate Tectonics, Volcanoes, Earthquakes Crossword

The process of sea-floor spreading happens along this boundary
A weak spot in Earth's crust where molten material rises
The scientist that came up with Continental Drift
The subduction zone at a convergent boundary is a place where this crust is recycled
This is the name of the supercontinent that used to be one land mass
The largest layer of the Earth
This will form when two continental plates collide
Where does the heat come from that drives this convection current in the mantle?
The crust and uppermost part of the mantle make up the _________
When magnetic poles switch this is called ___________
The instrument that measures earthquakes waves
The most damaging of the 3 waves is __________
Is the point on the surface directly above the focus of an earthquake
Sudden movement of plates. Usually along plate boundaries
Giant destructive waves created by earthquakes in the ocean
A convergent plate boundary where oceanic crust moves under the continental crust and the crust is destroyed
This plate is thin and more dense
This plate is thicker and less dense
Areas where either oceanic or coninental crust is being formed at divergent boundaries
Divergent boundaries where new crust is being formed
Built from falling ash "cinders"
Built up from both ash and lava and are the biggest and most destructive