Plate Tectonics boundaries
tsunami
A giant wave usually caused by an earthquake beneath the ocean floor.
mountain
A landform with steep sides and high elevation.
rift valley
A low spot in Earth's crust that forms where two plates move apart
divergent boundary
A plate boundary where two plates move away from each other.
convergent boundary
A plate boundary where two plates move toward each other (collide).
transform boundary
A plate boundary where two plates slide past each other in opposite directions.
volcano
A weak spot in the crust where magma has come to the surface
ocean trench
Deepest part in the ocean floor that forms along a subduction zone
What land features/events are transform boundaries associated with?
Earthquakes ONLY
lava
Magma that reaches and goes above Earth's surface
magma
Molten rock beneath the earth's surface
Oceanic Ridges
Ocean mountain range formed where tectonic plates are spreading apart.
subduction
One tectonic plate going under another plate
tectonic plates
Sections of the Earth's crust that move due to convection currents.
volcanic island chain
Series of volcanos formed as a plate moves over a hot spot
seafloor spreading
The formation of new ocean crust as a result of magma pushing upward and outward from Earth's mantle to the surface.
earthquake
The shaking of Earth's crust caused by movement of rock beneath the surface.
Theory of Plate Tectonics
The theory that states pieces of Earth's outer layer are in constant motion
What land features/events are made at divergent boundaries?
mid-ocean ridges, rift valleys, mountains, earthquakes
What land features/events are made at continent-continent convergent boundaries?
mountains, earthquakes
convection current
the circular flow of a fluid caused by the rising of heated fluid and sinking of cooled fluid
What land features/events are made at ocean-ocean convergent boundaries?
volcanoes, earthquakes
What land features/events are made at ocean-continent convergent boundaries?
volcanoes, earthquakes, mountains, trenches
