Plate Tect, Cont Drift, Seismic Waves

Front

What evidence do glacier scars in Africa provide?

Back

Africa was once in an area of the Earth that had a very cold climate.

Front

What are the fractures in the crust called where the plates meet?

Back

Faults.

Front

What type of seismic wave causes particles of rock to move at right angles to the wave direction?

Back

S Waves.

Front

What geological process occurs at a subduction zone?

Back

Subduction.

Front

Which seismic wave type travels the fastest?

Back

P wave.

Front

What is the theory that explains the movement of continents over time?

Back

Plate Tectonics.

Front

What is continental drift?

Back

The gradual movement of continents across the Earth's surface.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where two plates move apart.

Front

What is a convergent boundary?

Back

A tectonic plate boundary where two plates collide.