Continental Drift & Seafloor Spreading

Who is the German Scientist that came up with the theory of the Continental Drift? 

• Albert Einstein 
• Ms. Stukel 
• Galileo
• Alfred Wegener

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Where did Wegener find plant fossils that today would not be able to survive on that type of land?

• North America
• Antarctica
• China 
• India

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Originally the Continental drift theory was not well received by other scientists. Why?

• There was a competing theory at the time that was more believable.

• There was no data showing the continents ever moved.

• The scientists did not know the force responsible for moving the continents.

• The scientist presenting the data was unreliable.

This is a picture of glacier scars found in Africa. What are these evidence for?

• Africa has always been near the equator

• Africa was once in an area of the Earth that had a very cold climate

• The continents have not moved

• sea floor spreading

What is this a picture of?

• Plate tectonics

• Continental drift

• Pangea

• Glacier scaring

What evidence did Wegener use to support his theory?

• Continents and fossils fitting together/matching-up like puzzle pieces 
• glacier scars and other climate evidence from temperature
• mountain ranges and rocks line up across continents
• all of the above

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What is it called when two oceanic plates move apart and new crust is formed?

• crustal integrating
• sea-floor spreading

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Which type of plate is older?

• continental
• oceanic

New crust is created by _____________________?

• magma from the mantle

• earthquakes

• continents coming together

• seafloor subduction

What is an underwater mountain range where new ocean floor is made?

• subduction
• mid-ocean ridge
• deep-sea trench

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