CONCEPT MAP

Key Concepts: Key Vocabulary:

Fault

Epicenter

Intensity

Seismograph

Magnitude

P-S-Waves

Polarity

Plate Tectonics

Convergent

Divergent

Mid-ocean Ridge

Rift zone

Convention

Mantle

Aesthenosphere

Earthquakes are the most dramatic evidence that our crust moves

Seismic waves allow us to “map” the earth’s internal layers

Topic:

Dynamic Crust

Volcanoes and mountains ranges are also caused by plate movement

Convection cells in the mantle cause the seafloor to spread

Examples:

EQ off internet for last 24 hours

Crust, mantle, outer core, inner core

Ring of fire West coast of S. America

Mid Atlantic Ridge

Enduring Understanding (s): The Earth’s crustal plates move because of convection cells in the upper mantle. _________________________________________________

Essential Question (s): What evidence can be found on Earth that proves that our crustal plates move? _______________________________________________________

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