Continental Drift

Front

Who is credited with developing the theory of continental drift?

Back

Alfred Wegener

Front

What evidence did Wegener use to support his theory?

Back

All of the above: Continents and fossils fitting together, glacier scars, mountain ranges lining up.

Front

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

Back

Pangaea

Front

What type of evidence did Wegener NOT use to support his hypothesis?

Back

Evidence from human remains.

Front

What are glacier scars evidence of?

Back

Africa was once in an area of the Earth that had a very cold climate.

Front

What is continental drift?

Back

The movement of the Earth's continents relative to each other.

Front

What is plate tectonics?

Back

The theory that explains the movement of the Earth's plates and how they interact.

Front

What is the significance of fossil evidence in continental drift?

Back

Fossils of the same species found on different continents suggest they were once connected.

Front

What role do mountain ranges play in supporting continental drift?

Back

Mountain ranges that line up across continents indicate they were once part of the same landmass.

Front

What is the theory of seafloor spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.