Continental Drift Flashcard

Front

What does the word Pangea mean?

Back

Pangea means 'all land'.

Front

What does the theory of continental drift state?

Back

The theory of continental drift states that the continents were once joined in a super-continent and have moved over time.

Front

What are the two types of crust?

Back

The two types of crust are continental and oceanic.

Front

How does evidence of glaciation in Africa support the Theory of Continental Drift?

Back

It shows that the continents must have been in a different location.

Front

What evidence did Wegener use in his theory?

Back

Wegener used various types of evidence, including fossil records, geological similarities, and climate evidence.

Front

What is the significance of the mid-ocean ridge in continental drift?

Back

The mid-ocean ridge is significant as it is where new oceanic crust is formed, supporting the idea of plate tectonics.

Front

What role do tectonic plates play in continental drift?

Back

Tectonic plates are large sections of the Earth's crust that move and interact, causing continents to drift.

Front

What is the difference between continental crust and oceanic crust?

Back

Continental crust is thicker and less dense than oceanic crust, which is thinner and denser.

Front

What is the concept of seafloor spreading?

Back

Seafloor spreading is the process by which new oceanic crust is created at mid-ocean ridges and older crust moves away.

Front

How did fossil evidence support the theory of continental drift?

Back

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