Plate Boundaries
What is formed when two plates collide.
What is a convergent boundary?
The outermost solid layer of Earth.
What is the crust?
Any place where gas, ash, or melted rock come out of the ground.
What is a volcano?
Ground movements that occur when blocks of rock in Earth move suddenly and release energy.
What is an earthquake?
The process where molten rock from inside Earth rises through cracks in the ridges, cools, and forms new oceanic crust.
What is sea-floor spreading?
What is formed when two plates move past each other horizontally.
What is a transform boundary?
The part located between the core and the crust.
What is the mantle?
The opening of a volcano where lava and ash erupt from.
What is a vent?
A place within Earth along a fault at which the first motion of an earthquake occurs.
What is a focus?
Underwater mountain ranges where sea-floor spreading occurs.
What is a mid-ocean ridge?
When one plate sinks beneath another plate.
What is a subduction zone?
The outermost rigid layer of Earth made up of the crust and the rigid upper part of the mantle.
What is the lithosphere?
The resistance of a liquid material to flow.
What is viscosity?
What is directly above the focus on the Earth's surface.
What is an epicenter?
When the continents were all together.
What is Pangaea?
Large-scale movements of Earth's lithosphere, which is made up of the crust and the rigid, upper part of the mantle.
What is plate tectonics?
The strong lower part of the mantle.
What is the mesosphere?
An expanded area of magma made by molten rock inside a volcano.
What is a magma chamber?
A break in Earth's crust along which blocks of rock move.
What is a fault?
What is convection?
The asthenosphere.
What is the location of tectonic plates?
The liquid layer of the Earth's core.
What is the outer core?
When lava flows from giant cracks/fissures in Earth's surface.
What is a fissure eruption?
The return of rock to its original shape after elastic deformation.
What is elastic rebound?
Stress that pushes rocks in parallel opposite directions.
What is shear stress?