Theory of Continental Drift

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

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

What is this a picture of?

• plate tectonics

• continental drift

• pangaea

• glacier scaring

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 does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time
• Continents are stationary and do not move
• The Earth is broken into lithospheric plates that move due to convection currents
• none of the above

Why did no one believe Wegener's thoery?

• He could not explain HOW the continents moved
• He didn't have evidence
• His data was wrong
• He didn't use the right technology to gather data

What two specific continents fit together most noticeably?

• South America and North America

• South America and Europe

• South America and Africa

• Antartica and Africa

What specific technology did Wegener use in his study?

• GPS
• Sonar
• Radar
• Maps

How long ago is Pangaea believed to have existed?

• 200-300 million years ago

• 1000-2000 years ago

• 10,000-20,000 years ago

• 20-30 billion years ago

What do you call the evidence of Wegener's Theory that tells about the remains of an organism that lived long time ago?

• Ashes
• Bones
• Follicles
• Fossils

What remains did Wegener use as evidence of pangaea?

• Leaves and flowers
• Ice and mountains
• Plants and animals
• Dinosaurs and reptiles