Earth's Layers
The Earth's physical layers
What are the crust, mantle, and core?
The super continent proposed by Alfred Wegener
What is Pangaea?
A process where rocks change shape due to an increase in stress
What is deformation?
A place where materials such as gas, ash, or melted rock comes out of the ground
What is a volcano?
A series of ground movement
What is an earthquake?
Two ways to classify the Earth's layers.
What are chemical and physical composition?
Pieces of the lithosphere
What are tectonic plates?
It occurs when rock layers bend due to stress
What is folding?
Melted rock
What is magma?
A place inside the Earth that is along the plate where the first motions of an earthquake occur
What is a focus?
The two types of crust
What are continental and oceanic crust?
The idea proposed by Harry Hess
What is sea-floor spreading?
Forms when rock breaks
What is a fault?
Magma that has reached the Earth's surface
What is lava?
It is on the surface above the focus
The _____ in the mantle causes older(colder) rock to sink.
What is convection?
A ______ boundary where plates collide and a ______ boundary where plate move apart from each other
What are convergent and divergent?
A type of stress the pushes rocks in opposite direction and they are parallel
What is shear stress?
An opening in a volcano
What is a vent?
The stress that causes earthquakes at convergent boundaries
What is compression?
The five layer(chemical) of the Earth's crust
What are the lithosphere, asthenosphere, mesosphere, outer core, and inner core?
A boundary where two plates slide past each other
What is a transform boundary?
A type of stress that pulls or stretches rocks apart
What is tension?
A place where a volcano can occur that is not a plate boundary
What is a hot spot?
The sudden return of a rock to it's original shape after elastic deformation
What is elastic rebound?