Earths layers
The outermost layer of the earth
What is Crust?
the name of when the continents were all one large landmass
What is pangea?
the crack that forms when large blocks of rock break and move past eachother is called
What is a fault?
any place where ash, gas, or melted rock coem 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 middle layer of the earth
What is mantle?
these form along cracks in the crust
What are mid ocean ridges?
type of stress that squeezes or pushes rock together
What is compression?
this is what you call a volcano that has not exploded in a long time
What is dormant?
a place where 2 or more tectonic plates meet
What is a tectonic plate boundary?
the inner most layer of the earth
What is core?
this is divided into tectonic plates
What is lithosphere?
this occurs when rock layers bend under stress
What is folding?
this is what you call the opening of a volcano
What is a vent?
a series of extremely long waves that can travel across the ocean at high speeds and cause much destruction
what are tsunamis?
the 2 types of crust
What is continental and oceanic?
the most dramatic changes of earths crust happen on these
What are plate boundaries?
the 2 common types of folds
What are synclines and anticlines?
the location where mantle plume rises through the asthenosphere
What is a hot spot?
tension creates this type of fault
What are normal faults?
the movement of matter that results from differences in density cause by variations in temperature
What is convection?
when older rock responds to gravity by moving away from higher lighter rock at mid ocean ridges
What is ridge push?
the location where 2 fault blocks meet
what is a fault plane?
the resistance of a liquid material such as lava to flow
What is viscosity?
the return of rock to its original shape after elastic deformation
What is elastic rebound?