8R Flashcard: Continental Drift and Plate Tectonics

Front

Who is credited with developing the theory of continental drift?

Back

Alfred Wegener

Front

According to Wegener's hypothesis of continental drift,

Back

the continents were once joined together in a single landmass

Front

What type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?

Back

evidence from the development of the computer

Front

What do you call the supercontinent landmass formed million years ago?

Back

Pangea

Front

Earth's lithospheric plates move at a rate of a few _____________ every year.

Back

centimeters

Front

A tectonic plate is ____.

Back

pieces of Earth's crust

Front

When crust is neither created nor destroyed, what boundary is it formed along?

Back

transform

Front

What would you likely find at a convergent boundary between TWO pieces of CONTINENTAL crust?

Back

mountains

Front

What is one of the first clues that many people notice about continental drift?

Back

the continents appear to fit together like puzzle pieces.

Front

Mapping the locations of rocks gives clues as to how they may have moved along cracks in the crust called ______________.

Back

faults