Earth's Layers
Plate Tectonics
Fault Lines
Earthquakes
Volcanoes
100
This layer is at the very center of the earth.
What is the inner core?
100
The name of the supercontinent that existed 240 million years ago.
What is Pangea?
100
This kind of fault occurs under tension.
What is a normal fault?
100
These types of waves push energy from the focus of an earthquake.
What are seismic waves?
100
These are three stages of a volcano's life cycle.
What is active, dormant and extinct?
200
The movement that occurs within the asthenosphere.
What are convection currents?
200
The scientist who hypothesized the theory of continental drift.
Who is Wegener?
200
This fault line is drawn on a map using a straight line with two hook-like arrows on either side.
What is a strike-slip fault?
200
This type of damage caused by earthquakes occurs when loose soil becomes mud.
What is liquefaction?
200
This type of damage caused by volcanoes can clog plane engines and ground air traffic.
What is an ash cloud?
300
This top layer of the earth is found under the water.
What is oceanic crust?
300
According to the theory, these currents caused plates to shift.
What are convection currents?
300
This force/stress causes reverse faults.
What is compression?
300
The types of seismic waves compress and expand like an accordion.
What are P-waves.
300
This is the name of the area around the Pacific Ocean where there are an increased number of earthquakes and volcanoes.
What is the Ring of Fire?
400
This layer flows slowly in a cycle.
What is the mantle?
400
This type of boundary occurs when plates shift apart.
What are divergent boundaries?
400
The type of mountain is created on normal fault lines.
What are fault block mountains.
400
This scale measures how large an earthquake is baed on waves and fault movement.
What is the Richter Scale.
400
These forces push magma out of the vent of a volcano.
What are gases?
500
This second layer of the earth's crust is very rigid as opposed the softer layer just below it.
What is the lithosphere?
500
Wegner's theory was rejected because he couldn't explain this.
What is how the continental plates moved?
500
Los Angeles is located on what kind of fault line?
What is a strike-slip fault?
500
Earthquakes are particularly dangerous along coastlines because of these.
What are tsunamis?
500
This is another name for the eruption of hot ash and rock that causes severe damage to the area around a volcano.
What is a pyroclastic eruption?
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