EARTH
VOLCANOES
VOCABULARY
EARTHQUAKES
PLATE TECTONICS
100
This is at the center of the Earth
What is the core.
100
The molten rock material below the Earth's surface.
What is magma.
100
The idea that the crust of the Earth is composed of plates of rock that float on molten material.
What is plate tectonics.
100
the energy sent out from the focus of an earthquake.
What are seismic waves.
100
The movement and reformation of the continents.
What is continental drift.
200
The layer of the Earth that is liquid.
What is the outer core.
200
The molten rock material above the Earth's surface.
What is lava.
200
The place where crustal plates meet.
What is plate boundries.
200
The measure of the intensity of an earthquake.
What is magnitude.
200
Plate boundries where plates are moving toward one another.
What are convergant boundries.
300
The layer of the Earth that is composed of molten material.
What is the mantle.
300
Three different materials that can escape out of an exploding volcano.
What are ash, gases, bombs, or rock pieces.
300
The instrument used to measure the magnitude of an earthquake.
What is a seismograph.
300
The point inside the Earth where faulting begins.
What is the focus.
300
The type of plate boundry where plates move away from one another.
What are diverging plates.
400
The thickest layer inside the Earth.
What is mantle.
400
The opening in the Earth's crust that allows materials to escape from a volcano.
What is a vent.
400
The scale used to rate the intensity of an earthquake.
What is the Richter Scale.
400
The types of waves that travel on the surface slowly and cause the most damage.
What are s-waves.
400
The type of plate boundries where two plates slide past each other.
What are sliding boundries.
500
The place we call home.
What is Earth.
500
The area bordering the Pacific ocean where numerous volcanoes are located at plate boundries.
What is the Ring of Fire.
500
Most changes in Earth's surface occur here.
What are plate boundries.
500
The point on the surface of the Earth directly above the fucus.
What is the epicenter.
500
The name of the super-continent that once covered the Earth.
What is Pangea.
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