Plate Tectonics 1
The broken pieces of crust that are floating on top of the molten asthenosphere.
Tectonic Plates
The outermost layer of the Earth
Crust
A boundary where two plates collide.
Convergent
This layer of the Earth is the densest, at the very center and is made of mostly iron.
The inner core
The layer of the Earth between the crust and the outer core.
mantle
This layer of the Earth contains the asthenosphere
the mantle
The area where two tectonic plates meet
Plate Boundary
This feature often forms when a continental plate converges with a continental plate
Mountains
This feature forms at a divergent boundary where two oceanic crust pull apart to make new crust.
Mid-ocean ridge
This type of plate boundary is the leading cause of earthquakes
Most volcanoes and earthquakes occur along these cracks in the earth's surface.
Plate boundaries
A boundary where two plates slide along each other
Transform
This feature often forms at a divergent boundary where two continental crusts pull apart.
The Hawaiian islands were not formed along a plate boundary like most islands. They were formed from?
Hot Spot
The force from this causes the tectonic plates to move
convection currents
Most divergent plate boundaries occur here
under the ocean
A boundary where two plates pull apart.
Divergent
Earthquakes occur where there are cracks in the Earth's surface these cracks are called?
faults
The African Rift Valley is an example of this type of plate boundary
divergent
Tsunamis can be caused by a _________
an earthquake
He developed the theory of continental drift
Alfred Wegner
This tool is used to measure the strength of earthquakes
seismograph
This feature forms at a convergent boundary where a continental and oceanic crust collide.
deep ocean trench
These are located near volcanoes and shoot hot steamy water from the ground.
Geyser
This word describes the action of one plate moving below another plate into the mantle
subduction