Plate Tectonics Interactive

How thick is each layer of the Earth?

• 5 km

• Outer Core

• 1200 km

• Continental Crust

• 2900 km

• Inner Core

• 2300 km

• Oceanic Crust

• 30 km

• Mantle

What scientist developed the theory that the Earth's crust is moving?

• Wegener

• Newton

• Einstein

• Squarepants

What is the name of the supercontinent that was made up of all the Earth's landmass?

• Pangaea

• Terabithia

• Allandia

• Amerasiafricantarcteuralia

The Earth's rocky outer layer is called the

• lithosphere

• atmosphere

• platosphere

Order the images of the continents over time: (1) 225 million years ago

(2) 135 million years ago (3) today

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The Earth is covered with __ (number) tectonic plates.

Match the arrows to the boundary type

• divergent

• 
• transform

• 
• convergent

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