Unit 1: A Changing Earth, Lessons 2-3

The crust and upper area of the mantle. It is about 100 kilometers (about 62 miles) thick.

• What is the lithosphere?

• What is the theory of plate tectonics?

• What is the epicenter?

• What is plate boundaries?

The idea that the earth's crust is made up of moving plates.

• What is the theory of plate tectonics?

• What is the theory of plate boundaries?

• What is the scientific method?

• What is a plate?

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Places where the plates meet.

• What is plate boundaries?

• What is a plate?

• What is the theory of plate tectonics?

• What is an earthquake?

Tags

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Released energy that causes vibrations in the earth's surface.

• What is an earthquake?

• What is a fault?

• What is a plate boundary?

• What is a tsunami?

Tags

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Breaks in the earth's surface along which rock can move.

• What is a fault?

• What is an earthquake?

• What is a seismic wave?

• What is the epicenter?

This kind of fault occurs where rocks push together until they force a section of rock upward.

• What is a thrust or reverse fault?

• What is a normal fault?

• What is a strike-slip fault?

• What is an earthquake?

This kind of fault occurs as rocks move horizontally past each other.

• What is a strike-slip fault?

• What is a normal fault?

• What is a thrust or reverse fault?

• What is a seismic wave?

During this fault rocks move apart and a section of rock may fall between the separating rocks.

• What is a normal fault?

• What is a thrust or reverse fault?

• What is a strike-slip fault?

Tags

NGSS.MS-ESS2-2

The beginning point of an earthquake. Waves of energy are sent out from this place.

• What is the focus?

• What are seismic waves?

• What are Seismologists?

• What is a seismograph?

These vibrations flow out from the focus (earthquake) in all directions, similar to the ripples caused when a pebble is tossed into a pond.

• What are seismic waves?

• What is the focus?

• What are fault lines?

• What is a seismograph?

Tags

NGSS.MS-ESS3-2

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