Earth Layers
Layers/Plates
Plate Tectonics
Earthquakes
Earthquakes/Volcanoes
100
The liquid layer of the Earth
What is the outer core?
100
The layer that the plates move around on
What is the crust (or lithosphere)?
100
Plate movement eventually led to this breaking apart
What is Pangaea?
100
The slowest and largest waves that cause the most destruction
What are surface waves?
100
The point on the Earth's surface where scientists measure the location of earthquakes
What is the epicenter?
200
The thickest layer of the Earth
What is the mantle?
200
This best describes Earth's crustal plates
What is that it is composed of oceanic and continental plates?
200
A break in rock along which the ground has moved on either side
What is a fault?
200
Waves that travel the fastest and cause rock material to move back and forth
What are primary waves?
200
The type of seismic waves travel through the Earth
What are body waves (P & S waves)?
300
What geologists call the upper mantle and crust combined
What is the the lithosphere?
300
This occurs when continental crust pushes against oceanic crust
What is a subduction zone?
300
Tectonic plate movement is caused by this
What are convection currents in the mantle?
300
These move through the rock material by causing particles in the rocks to vibrate at right angles to the direction in which the waves are moving
What are secondary waves?
300
The exact point where slippage occurs at a plate boundary that causes an earthquake
What is the focus?
400
Basic composition of the Earth's core
What is solid inner core and liquid outer core?
400
The activity that occurs along the Ring of Fire is most likely due to this
What is movement along plate boundaries?
400
Land feature that occurs when two continental plates are pushed together
What are mountains?
400
Earthquakes are more damaging to structures closest to this
What is the epicenter?
400
This type of volcanic eruption can cause a volcano to blow its top and the mountain to crumble
What is an explosive eruption?
500
The best explanation of why the inner core is solid metal
What is the immense pressure of the weight of Earth prevents it from melting?
500
The characteristics of the 4 main layers of the earth (crust, mantle, inner and outer core)
What is a thin solid crust, a putty like mantle, a molten liquid outer core, and a solid iron inner core?
500
Mid-ocean ridges cause volcanic activity because of this type of plate boundary movement
What is moving apart (divergent boundary)?
500
Secondary (S) Seismic Waves can pass through this state of matter
What are solids only?
500
Where earthquakes and volcanoes are most often located
What are edges of crustal plates?
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