Plate Tectonic Theory

What is Pangaea?

• The name of a German Scientist
• the name of the supercontinent that existed millions of years ago
• another name for continental drift
• the name of an ancient fossil

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Plate movement is caused by ______________.

• the rotation of the Earth
• ocean tides
• convection currents in the mantle
• the moon's gravity

What are mid-ocean ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

What does the hypothesis 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

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

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

During sea floor spreading, molten material rises up from the mantle...

• along the continents
• at the mid ocean ridges
• at deep ocean trenches
• at north and south poles

Earth's plates...

• are constantly moving and changing the face of the earth
• never move
• move seldom and very fast
• move when it feels like it