7th Pangaea/Continental Drift Theory

Front

What is a fossil?

Back

A fossil is the remains, traces, or imprint of an ancient living thing preserved in rock.

Front

What is Pangaea?

Back

Pangaea is the name of the single supercontinent that existed before the continents drifted apart.

Front

What are tectonic plates?

Back

Tectonic plates are pieces of the Earth's crust that move due to convection currents in the mantle.

Front

What evidence do glacier scars provide?

Back

Glacier scars found in Africa indicate that Africa was once in an area of the Earth that had a very cold climate.

Front

True or False: Volcanoes are formed from plate movement.

Back

False. Volcanoes are formed as a result of plate movement.

Front

What are convection currents?

Back

Convection currents are movements within the Earth's mantle that cause the tectonic plates to move.

Front

What is continental drift?

Back

Continental drift is the theory that continents have moved over geological time from a single supercontinent.

Front

What is the significance of the Glossopteris plant?

Back

Glossopteris is a fossil plant that provides evidence for the theory of continental drift, as it was found on multiple continents.

Front

What is Gondwanaland?

Back

Gondwanaland was a supercontinent that included present-day South America, Africa, Antarctica, Australia, and the Indian subcontinent.

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What is sea floor spreading?

Back

Sea floor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and gradually moves away from them.