Conditental drift theory

What is the main premise of the Continental Drift Theory?

The continents were not always in their current locations, and they move very slowly over time.

Who proposed the Continental Drift Theory and in what year?

Alfred Wegener proposed the Continental Drift Theory in 1912.

What is Pangaea?

Pangaea is the supercontinent that existed about 300 million years ago, comprising all Earth's continents.

What evidence did Wegener collect to support his theory?

Wegener collected evidence from fossils, rocks, mountains, and ancient climates.

How do the coastlines of South America and Africa support the theory?

The coastlines of South America and Africa fit together like puzzle pieces, suggesting they were once connected.

What is significant about the fossils of Mesosaurus?

Mesosaurus fossils were found in both South America and Africa, suggesting the continents were once connected.

What does matching geological structures between continents indicate?

Similar rocks and mountain ranges on different continents suggest they were part of the same geological region before separation.

How did ancient climate evidence support continental drift?

Glacial deposits found in currently warm places suggest that those continents were once in colder regions.

What are the four main pieces of evidence for continental drift?

Continental Fit, Fossils, Rocks and Mountains, Ancient Climate.

Why was Wegener's theory not immediately accepted?

Wegener could not explain how the continents moved or the force behind their movement.

What significant discoveries helped later scientists build on Wegener's theory?

Discoveries such as mid-ocean ridges, seafloor spreading, and the formation of new oceanic crust.

What is the Theory of Plate Tectonics?

It explains that continents are carried by large pieces of Earth's crust called tectonic plates.