Plate Tectonics

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What was Wegener's hypothesis called?

Back

The Continental Drift

Front

What type of boundary is formed when two tectonic plates slide past each other?

Back

Transform boundary

Front

What evidence did Wegener use to support his theory of continental drift?

Back

Rock, fossil, and climate data.

Front

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

Back

Pangea

Front

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

Back

Divergent boundary

Front

What geological feature is commonly formed at convergent boundaries?

Back

Mountains or deep ocean trenches.

Front

What is sea-floor spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the core.

Front

What is the core of the Earth?

Back

The innermost layer of the Earth, consisting of a solid inner core and a liquid outer core.