Earths layers
The outermost layer on the earth.
What is the Crust?
A single landmass joined 245 million years ago
What is Pangaea?
The process by which rocks change shape when under stress
What is Deformation?
Any place where gas, ash, or melted rock comes out of the ground
What is a volcano?
Ground movement that occurs when blocks of rock in Earth move suddenly and release energy
What is an earthquake?
Between the core and the crust
What is the mantle?
Molten rock inside earth rises through cracks in the ridges, cools, and forms new oceanic crust
What is Sea-floor spreading?
Occurs when rock layers bend under stress
What is Folding?
Melted rock that is less dense than solid rock
What is magma?
A place within Earth along a fault at which the first motion of an Earthquake
What is a Focus?
The movement of matter that results in differences in density
What is convection?
The movement of Tectonic plates
What is Plate Tectonics?
The youngest layer found at the core of the fold
What is Syncline?
Magma that has reached earth's surface
What is lava?
Directly above the focus on Earth's surface
What is an Epicenter?
The liquid layer of Earths core
What is the outer core?
The plates that are moving
What are Tectonic plates?
The oldest layer found outside a fold
What is an Anticline?
An opening in a volcano where lava and ash erupt
What is a vent?
The return of rock to its original shape after elastic deformation
What is Elastic Rebound?
Solid center of the earth
What is the inner core?
When the mantle heats up and is pushed up by cooler rock
What is Mantle convection?
A crack that forms when large blocks of rock break and move past each other
What is a Fault?
The resistance of liquid material
What is viscosity?
A series of extremely long waves that can travel along oceans at speeds up to 800 km.
What is a tsunami?