Show:
Earth's Composition
Continental Drift
Plate Interactions
Igneous Rocks & Volcanoes
Earthquakes
100
The layer of the earth that ranges from 100 km to 600 km in depth.
What is the asthenosphere?
100
A theory that states constant motion of the continents.
What is the theory of continental drift?
100
The interaction between to plates moving away from each other.
What is a divergent plate boundary?
100
Molten rock that is trapped underground.
What is magma?
100
Used to measure the magnitude of earthquakes.
What is the Richter Scale?
200
The only liquid layer of the earth.
What is the outer core?
200
The man that proposed the theory of continental drift.
Who was Alfred Wegener?
200
A geographic feature that appears in the ocean when continental crust overtakes oceanic crust.
What is a trench?
200
Determined by a rock's origin; where it cooled determines the crystal size.
What is texture?
200
The exact point at which an earthquake occurs.
What is a focus?
300
Used by scientists to learn more about the Earth's interior.
What are earthquake waves?
300
The flattest part of the ocean floor.
What is an abyssal plain?
300
Movement of heat in the mantle that promotes seafloor spreading.
What is convection?
300
This type of light rock can still contain 25% dark rocks.
What is granite?
300
The amount of energy released by an earthquake.
What is magnitude?
400
A dense layer of crust composed of heavy metals such as Iron, Magnesium, etc.
What is oceanic crust?
400
Resides in the center of oceans; relevant to sea floor spreading.
What is a mid-ocean ridge?
400
This occurs with convergent boundaries that aren't continental plate to continental plate.
What is subduction?
400
Used to classify fine, glassy, or vesicular rocks that form near or on the surface.
What are extrusive rocks?
400
The point on the surface directly above an earthquake.
What is an epicenter?
500
A layer of the Earth containing the crust and uppermost mantle.
What is the lithosphere?
500
Used by scientists to study the ocean floor; sends sound waves down to timed on return time.
What is sonar?
500
These deformations of the Earth occur with transform boundaries; earthquakes occur here.
What are faults?
500
The largest type of volcano.
What is a shield volcano?
500
The fastest waves produced by an earthquake.
What are P-waves?