The Continental Drift Theory & Plate Tectonics

Front

Plates meet at ___________ where most earthquakes and volcanoes occur?

Back

plate boundaries

Front

Which are large slabs of rock that carry the continents and move very slowly due to movement in the mantle?

Back

plates

Front

At which type of boundary do plates slip past each other?

Back

transform

Front

Which answer correctly matches the timeline of discoveries?

Back

Continental Drift 1915, Sea Floor Spreading 1950's, Plate Tectonic Theory 1960's

Front

Which is the soft, malleable part of the mantle?

Back

asthenosphere

Front

What is the theory that explains the movement of the Earth's plates?

Back

Plate Tectonics

Front

What is the name of the supercontinent that existed millions of years ago?

Back

Pangaea

Front

What type of boundary occurs when two plates move away from each other?

Back

divergent boundary

Front

What geological feature is formed at convergent boundaries?

Back

mountain ranges or trenches

Front

What is the process called when one tectonic plate is forced under another?

Back

subduction