Plate Tectonics Test Review

What name did Wegener give the "supercontinent" - when the pieces of land looked like they fit together like a puzzle?

What is the name of the idea that Wegener came up with?
Continental ________________

What geologic feature would you most likely find at an oceanic-oceanic divergent boundary?

• Rift valley
• Mid-Ocean Ridge
• Flat land

If you could travel to the center of the earth, you would notice that ______________________ increases as you traveled deeper and deeper through the layers.

• pressure
• temperature
• both the temperature and pressure

What was the main reason scientists didn't accept Alfred Wegener's Continental Drift hypothesis?

• Wegener was not a geologist and so he was not respected by anyone.
• Wegener could not explain HOW the continents moved.
• Oceans were too deep for scientists to accurately prove sea-floor spreading.

Which of these is most likely formed when a continental plate and an oceanic plate collide?

• a rain shadow desert
• a rift valley
• a subduction zone and trench

Why isn't the Earth getting larger if new seafloor is being made along mid-ocean ridges?

• because new rock is being added at the mid-ocean ridges
• because the seafloor is spreading
• because older seafloor is being recycled back into the mantle at the trenches

Which of the following processes best explains how the Mariana Trench was formed?

• convergent boundary
• divergent boundary
• none of the above

Which mineral found in the oceanic crust is responsible for recording the Earth's magnetic polarity.

• magnesium
• iron
• calcium

The Aleutian Islands are shown on the map below. Three students were asked what forms where the Pacific Plate subducts under the North American Plate. Their responses are shown below. Student 1: A mid-ocean ridge is formed. Student 2: A mountain range is formed. Student 3: A trench is formed. Which student correctly identified answered what formed near the Aleutian Islands?

• Student 1
• Student 2
• Student 3