Wegener and Continental drift (IQWST lesson 2)

Front

What is the theory of Continental Drift?

Back

The theory of Continental Drift suggests that continents were once joined together in a single landmass and have since drifted apart over geological time.

Front

What is Pangaea?

Back

Pangaea is the name given to the supercontinent that existed during the late Paleozoic and early Mesozoic eras, where all continents were joined together.

Front

What evidence did Wegener use to support his theory of Continental Drift?

Back

Wegener used evidence such as matching rock types and ages, fossil distribution, and climatic evidence to support his theory.

Front

What is Glossopteris?

Back

Glossopteris is a genus of extinct plants that provides evidence for Continental Drift, as its fossils have been found on continents that are now widely separated.

Front

Why is coal found in Antarctica significant to the theory of Continental Drift?

Back

The presence of coal in Antarctica suggests that it was once located in a warmer climate near the equator, supporting the idea that continents have moved.

Front

What does matching rock types across continents indicate?

Back

Matching rock types and ages across continents suggest that those continents were once connected, providing evidence for Continental Drift.

Front

What is the significance of fossil distribution in supporting Continental Drift?

Back

Fossils of the same species found on different continents indicate that those continents were once joined, allowing species to inhabit a larger area.

Front

What is the role of magnetic striping on the seafloor in understanding plate tectonics?

Back

Magnetic striping on the seafloor shows patterns of magnetic reversals, which help scientists understand seafloor spreading but was not used by Wegener.

Front

What is the difference between a tropical climate and a temperate climate?

Back

A tropical climate is hot and humid all year, while a temperate climate has distinct seasons with varying temperatures.

Front

What does the term 'continental drift' refer to?

Back

Continental drift refers to the gradual movement of continents across the Earth's surface over geological time.