Continental Drift and Plate Tectonics

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

Why did no one accept Wegener's theory?

• He could not explain HOW the continents moved
• He didn't have evidence
• His data was wrong
• He didn't use the right technology to gather data

What does the word Pangea mean?

• one place

• old land
• all land
• island

What are the three types of Evidence that supports Alfred Wegener's Theory?

• Fossils, Fish, and Land

• Sedimentary, Magma, and Climate

• Fossils, Land forms, and Climate

• Climate, Land forms, and Metamorphic rock

Most geologists think that the movement of Earth's tectonic plates is caused by

• the rotation of the Earth.

• the Earth's magnetic field.

• subduction.

• convection currents.

the process by which new oceanic crust forms as magma rises toward the surface and solidifies

• divergent boundary

• mid ocean ridge

• convergent boundary

• sea floor spreading

what is the name of the undersea mountain chain where new ocean floor is produced at a divergent plate boundary?

• fault

• convection currents

• trench

• mid ocean ridge

the edge of a tectonic plate where two plates meet.

• fossils

• plate boundaries

• convection currents

• faults

any remains, trace, or imprint of animal or plant life preserved in Earth’s crust

• fault

• magma

• fossil

• tectonic plate

the theory (from Alfred Wegener) that the continents had once been one big continent that broke up and moved around to their present-day positions

• convection currents

• continentall drift

• sea floor spreading

• magnetic reversal