Continental Drift

Front

What is Continental Drift?

Back

The theory that continents have moved over geological time and were once joined together in a single landmass.

Front

Who proposed the Continental Drift Theory?

Back

Alfred Wegener.

Front

What is the evidence of Continental Fit?

Back

The shapes of continents, such as South America and Africa, fit together like puzzle pieces.

Front

What is fossil evidence in support of Continental Drift?

Back

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

Front

What is glacial evidence for Continental Drift?

Back

Glacial deposits and striations found in currently warm regions suggest these areas were once near the poles.

Front

Why was the Continental Drift Theory initially rejected?

Back

Scientists did not know the mechanism that caused the continents to move.

Front

What is Pangaea?

Back

A supercontinent that existed around 335 million years ago, where all continents were joined together.

Front

What role do tectonic plates play in Continental Drift?

Back

Tectonic plates are large sections of the Earth's crust that move and can cause continents to drift.

Front

What is the significance of the Mid-Atlantic Ridge?

Back

It is a divergent boundary where new oceanic crust is formed, supporting the idea of continental drift.

Front

What is the concept of sea-floor spreading?

Back

The process by which new oceanic crust is created at mid-ocean ridges and pushes continents apart.