Tectonic Plate Boundaries test.

For science.

P wave

A type of seismic wave that compresses and expands the ground and travels fastest (push and pull)

S wave

a seismic wave that causes particles of rock to move in a side-to-side direction

arrives second

Viscosity

resistance to flow

Ring of Fire

Area around the Pacific Ocean known for frequent earthquakes and volcanoes

type of volcano with steep sides

composite

formed from highly viscous magma

known for large explosions

shield

type of volcano with a wide base and gently sloping sides

formed as lava with low viscosity oozes from the ground

mild eruptions

igneous rock

a type of rock that forms from the cooling of molten rock at or below the surface

sedimentary rock

a rock that forms from compressed or cemented layers of sediment

metamorphic rock

A type of rock that forms from an existing rock that is changed by heat

cinder cone

A steep

looks like a scoop has been taken from the top

lava

molten rock that reaches Earth's surface

magma

Molten rock beneath the earth's surface

Pangea

term for the "supercontinent" developed by Wegener as part of his theory of continental drift

convection currents

Circular currents in the mantle caused by the magma being heated by the core and cooled off near Earth's crust

convergent boundary

A tectonic plate boundary where two plates collide

divergent boundary

A plate boundary where two plates move away from each other.

transform boundary

A plate boundary where two plates move past each other in opposite directions

Result of convergent boundaries

colliding to form mountains

Result of divergent boundaries

new crust

result of transform boundaries

Earthquakes and faults