E Ch.8 Review E 5

The theory that the continents were once connected and have since spread apart.

• Continental Drift

• Plate Tectonics

• Pangaea

• Sea Floor Spreading

The concept that explains how continents have moved apart into their present positions.

• Plate Tectonics

• Pangaea

• Continental Drift

• Magnetic Reversals

Alfred Wegener could not explain HOW the plates moved because he did not know about....

• Convection Currents

• Synclines

• Anticlines

• Subduction

Downward folds in rock layers are called....

• Syncline

• Anticlyne

• Fault

• Hanging Wall

Which stress force squeezes rocks together?

• Compression

• Tension

• Shearing

• Faulting

Which layer of earth is broken into "plates"?

• Lithosphere

• Asthenosphere

• Mantle

• Borax

The Hawaiian islands formed in the middle of a plate due to a ....

• Hot Spot

• Island Arc

• Convection Current

• Subduciton

Inside a volcano, magma collects in the....

• Magma Chamber

• Pipe

• Stove

• Caldera

The point on the surface where an earthquake causes the most damage.

• Epicenter

• Focus

• Seismic Zone

• Fault

Where sea-floor spreading occurs.

• Mid-Ocean Ridge

• Subduction Zone

• Rift Valley

• Volcano