Large slabs of the Earth's crust that are always moving.
What are tectonic plates?
100
Underwater mountain range.
What are ocean ridges?
100
What are the three types of volcanoes?
What are shield, cinder cone, composite?
100
Where do earthquakes occur?
What are tectonic plate boundaries?
200
The idea that the continents were once all one, and then drifted and separated into 7.
What is The Theory of Continental Drift?
200
A boundary where tectonic plates are moving away from each other.
What is a divergent boundary?
200
Underwater breaks in the Earth's crust where old ocean crust is destroyed.
What are deep sea trenches?
200
Magma that will cause an explosive eruption.
What is viscous magma?
200
Measure of the energy released at the focus of an earthquake.
What is magnitude?
300
The German scientist who thought of the Theory of Continental Drift.
Who is Alfred Wegner?
300
A boundary where tectonic plates are moving towards each other.
What is a convergent boundary?
300
A volcano that will not have viscous magma.
What is shield volcano?
300
What the Mercalli Scale measures.
What is intensity?
400
The body of water that did not exist until the continents separated.
Atlantic Ocean
400
A boundary where tectonic plates are moving horizontally against each other.
What is a transform boundary?
400
A device that can detect small changes in the magnetic field.
What is a magnetometer?
400
The most dangerous volcano.
What is composite volcano?
500
The science that explains Continental Drift.
(hint: talks about big moving slabs of the earth's crust and boundaries)
What is Plate Tectonics?
500
The Theory that explains the movement of tectonic plates.
(hint: The Theory states how new ocean crust is formed at ocean ridges and destroyed at deep sea trenches)
What is Sea Floor Spread?
500
The process in which hot things move up and cool things move down (under the Earth's crust).
What is convection?
500
Unusually hot regions of mantle where magma might rise out of fissures.
What are hot spots?
500
The three types of faults, where they occur, and what type of stress causes them.
What is normal (divergent boundary, tension), reverse (convergent boundary, compression), strike-slip (transform boundary, all type of stress).