Plate Tectonics Review of Terms

Hot layer of Earth that moves 

Vocanoes are more commonly found at what plate boundaries? 

Boundary where two plates separate

Forces that drag the lithosphere similar to a conveyor belt ... 

Hypothesis that states that the continents are in constant motion on the surface of Earth. 

On either side of a mid-ocean ridge, magnetic stripes match & show older crust has moved away 

State in which magnetized objects point north ... 

Convergent boundaries form 

Why didn't other scientists believe Wegener? 

Mountain Ranges in the middle of the oceans are called ... 

What does TECTONIC mean when used by Geologists? 

This states that Earth's surface is made of slabs of rock that move 

As a slab sinks, it pulls on the rest of the plate with a force called ... 

Cold rigid outermost rock layer is called ...

Boundary where two plates collide 

Faults and earthquakes are common along this boundary 

What area is flat due to an accumulation of sediments far from the ridge? 

When a denser plate sinks below the more buoyant plate - this process is called: 

One of these things does NOT support Wegener's hypothesis ... (NOT support!!) 

Forms at divergent plate boundaries 

Circulation of material caused by differences in temperature ... 

Boundary where one plates slide past each other ... 

What is Pangaea?

Force that causes plates to move away from the ridge 

Process by which new oceanic crust forms along a mid-ocean ridge and moves away from the ridge