Continental drift and seafloor spreading

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

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

What is this a picture of? Ancient Supercontinent.

• plate tectonics

• continental drift

• pangea

• 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

What evidence did Wegener use in his theory?

• Continents and fossils fitting together/matching-up like puzzle pieces 
• glacier scars and evidence from temperature
• mountain ranges and coal deposits line up across continents
• all 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?

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

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False

New crust is always formed at the...

• mid-ocean ridge
• deep-ocean trench
• asthenosphere

Process by which new ocean lithosphere forms.

• Seafloor spreading
• Continental drift
• Mid-ocean ridge
• Rift