Earth and Rocks

Which layer of the earth is the thickest?

• Inner Core

• Outer Core

• Mantle

• Crust

Which layer of the earth is the thinnest?

• Inner core

• Outer core

• Mantle

• Crust

Which layer of the earth is solid iron and nickel (due to pressure)?

• Inner core

• Outer core

• Mantle

• Crust

Which layer of the earth is like lava or honey?

• Inner core

• Outer core

• Mantle

• Crust

Which layer of the earth is solid due to temperature?

• Inner core

• Outer core

• Mantle

• Crust

Which layer of the earth is a soft solid like candle wax?

• Inner core

• Outer core

• Mantle

• Crust

Which scientist proposed the idea of a supercontinent?

• Albert Einstein

• Alfred Wegner

• Isaac Newton

• Michael Faraday

What was the name of the supercontinent?

• Pongo

• Pangaea

• Pandora

• Perdy

Select all reasons why Alfred Wegner believed Pangaea once existed.

• Continents fit together like puzzle pieces

• Similar fossils are found on different continents

• Scientists saw Pangaea in outer space

• The rock layers on different continents match

• The same animals are found on different continents

Approximately how long ago did Pangaea exist?

• 250 years ago

• 250 million years ago

• 2,000 years ago

• 20 years ago