Layers of the Earth/Continental Drift Theory

As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?

• The would all increase
• The would all decrease.
• Nothing, the layers are made of the same material throughout
• Temperature would decrease, but pressure and density would increase

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In the early 1900's Alfred Wegener found evidence of identical rock types, identical fossils, and matching mountain ranges on different continents that are on opposite sides of an ocean.  What could be the explanation for these observations?

• All animals can swim extremely long distances 
• These observations have no significant meaning.
• In the past, continents were not located where they are today but were joined together 
• mountains are made through the same processes therefore they are very similar in their structure throughout the entire world.

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According to Wegener's hypothesis of continental drift,

• Earth is shrinking
• The continents do not move, they only appear to drift.
• The Earth once had great land bridges that connected the continents.
• The continents were once joined and have since drifted apart.

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Which layer does the lithosphere (the outer most layer plus the crust) float on top of?

• the crust
• lithosphere
• asthenosphere
• outer core

Which layer of Earth makes up the crust and the upper most part of the mantle.  This is the rigid layer that is broken into sections called plates.

• Crust
• Lithosphere
• Asthenosphere
• Mantle

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Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

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What two specific continents fit together most noticeably?

• Africa and North America
• South America and Europe
• South America and Africa
•  Antartica and Africa

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What is this a picture of?

• plate tectonics
• continental drift
• pangea
• glacier scaring

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The theory of continental drift named a key part of this idea Pangaea. What is Pangaea?

• One of the ancient animals that helped Wegener prove that fossils from different continents originally came from the same location
•  supercontinent that existed in Earth's distant past
• The underwater ocean range in the middle of the ocean
• The hot spot which gave rise to the Hawaiian Islands, among others

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What is the name of the supercontinent that formed from about 200-100  million years ago?

• Pangaea
• Laurasia

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