Plate Tectonics Test

Wegener proposed that all the continents were once part of a supercontinent called:

Pangea

Many of California Earthquakes are caused by:

two plates sliding past one another

The idea of __________ provides an explanation to how continents move.

seafloor spreading

Magnetic stripes on the seafloor show that:

Earth’s magnetic field has changed

The shapes of continental coastlines were one of the main pieces of evidence that supported the hypothesis of:

continental drift

What are tectonic plates?

slabs of crust and upper mantle

The theory of __________ states that Earth’s surface if made of plates that move in respect to each other.

plate tectonics

__________ in the asthenosphere is thought to be the driving force of plate movements.

convection

What happens to the plates in a divergent plate boundary?

two plates separate

What happens at a transform plate boundary?

plates slide past each other

What is located at a divergent plate boundary?

East African Rift

What is located at a convergent plate boundary?

subduction zone

What is located at a transform plate boundary?

San Andreas Fault

What force is created at divergent plate boundaries?

ridge push

What force is created at convergent plate boundaries?

slab pull