Moving Continents Flashcards

Flashcards about moving continents.

What is the presence of the same fossils and rocks?

What type of evidence found on several continents supports the hypothesis of continental drift?

False

True or False: Some early mapmakers thought that the coastline of South America matched the coastline of Asia.

True

True or False: Scientists at the time rejected Wegener’s hypothesis of continental drift because he could not explain how or why Earth’s continents move.

Pangaea

What single supercontinent does a lack of explanation for continental drift prevent many scientists from accepting once existed?

Rock structures

What type of matching evidence on different continents is evidence for continental drift?

Glossopteris

Which fossil fern helped support Wegener’s hypothesis of continental drift?

250 million

About how many years ago did Wegener believe that the continents were assembled as part of a supercontinent?

Glaciers formed in the shown locations because the continents were once located near a polar region before moving.

What is supported by data from a map showing where glaciers existed 250 million years ago, suggesting continents were joined and then moved apart?

The edges looked as if they would fit together like pieces of a puzzle.

Why did Alfred Wegener believe that all of the continents once had been joined?

Rocks of the same age on different continents and fossils of land-dwelling organisms found on continents separated by oceans.

Name two pieces of evidence used to support the hypothesis of continental drift.