2nd 9 weeks review

Alfred Wegner's Theory of __________ __________ says the continents were once together

• Tectonic Plates

• Continental Drift

• Seafloor Spreading

• Divergent Boundary

This giant landmass is called _________. (The name of the continents when all plates were together)

• Pangea

• Continental Crust

• Oceanic Crust

• Mantle

[Check all of the following that were] Evidence to support Wegner's theory:

1. Continents look like puzzle pieces

• Fossils

• Coal Deposits

• Glacial Scarring

• Similar rock formations and mountain ranges

• Weather Patterns

Harry Hess discovered underwater volcanic mountains, called a ______ - ______ _________

• Convergent Boundary

• Divergent boundary

• Mid-Ocean Ridge

• Rift Valley

_________ ______________ is where less dense hot magma rises and pushes the plates, cools and becomes more dense and sinks

• Continental drift

• Convection currents

• Seafloor spreading

• Hurricane formation

Convergent boundaries....

• Collide

• Divide

• slide

Divergent boundaries....

• Collide

• Divide

• slide

Transform boundaries....

• Collide

• Divide

• slide

What kind of boundary is demonstrated by the arrows?

• Convergent Boundary

• Divergent Boundary

• Transform Boundary

What kind of boundary is demonstrated by the arrows?

• Convergent Boundary

• Divergent Boundary

• Transform Boundary