Exploring Continental Drift vs. Expanding Earth

The video explains the movement of continents over the past 200 million years, driven by the theory of plate tectonics. It describes how Earth's crust and mantle form plates that move on the asthenosphere. The continents, once part of a supercontinent called Pangaea, have drifted to their current positions and will continue to move.

What does the theory of plate tectonics explain?

• The formation of mountains

• The movement of continents

• The creation of oceans

• The extinction of dinosaurs

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How many plates make up the Earth's crust and ocean floors?

• About 40

• About 20

• About 30

• About 10

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What is the outermost layer of the Earth called?

• Mantle

• Core

• Asthenosphere

• Crust

What is the asthenosphere?

• A type of rock

• A layer of the mantle that flows while remaining solid

• A layer of the crust

• A layer of the core

What was the name of the single landmass that existed 200 million years ago?

• Pangaea

• Eurasia

• Laurasia

• Gondwanaland

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Which continent was once part of Gondwanaland and later joined Asia?

• Australia

• South America

• Africa

• India

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