| Diagram Reading | ||
| #1 |
What type of boundary occurs at X? |
|
| #2 |
What feature occurs at Y? |
Deep Ocean Trench |
| #3 |
What is happening at Z? |
Subduction |
| #4 |
Which type of plate boundary occurs at Y? |
Convergent Boundary |
| #5 |
What feature occurs at X? |
Mid Ocean Ridge |
| Don't Forget Wegener | ||
| #1 | According to Wegener's hypothesis of continental drift........ |
the continents were once joined together in a single landmass |
| #2 | What is the name of the supercontinent from 200 million years ago? |
Pangaea |
| #3 | When the heat sourceis removed from a fluid, convectin currents will... |
eventually stop |
| #4 | Most geologists think that the movement of Earth's plates is caused by.... |
Convection Currents in the Mantle |
| #5 | Most geologists rejected Wegener's idea of continental drift because....
|
Wegener could not identify a force that could move the continents. |
| Layers of the Earth | ||
| #1 | In the mantle, heat is transferred as soft rock flows slowly in cycles known as... |
Convection Currents |
| #2 | What technology did scientists used to map the mid ocean ridge? |
sonar |
| #3 | The lithosphere is broken up into sections called.. |
plates |
| #4 | Movement of Earth's plates are caused by... |
Convection Currents in the Mantle |
| #5 | The part of the mantle that is made of soft rock that is like plastic? |
asthenosphere |
| Sea-Floor Spreading | ||
| #1 | What forms when continental plates pull apart at a divergent boundary on land? |
rift valley |
| #2 | What technology did scientists use in the mid-1900s to map the mid ocean ridge? |
Sonar |
| #3 | Why didn't scientists believe Wegener's hypothesis of Continental Drift? |
Wegener could not identify the force that could move the continents. |
| #4 | What can be formed when two continental plates collide at a convergent boundary? |
mountain or mountain range |
| #5 | The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as.... |
Subduction |
| Plate Tectonics | ||
| #1 | The place where two plates come togetherand collide is known as a... |
convergent boundary |
| #2 | The place where plates slip past against each other in opposite directions is called... |
transform boundary |
| #3 | A continental plate collides with an oceanic plate which forms a deep ocean trench at what kind of boundary? |
convergent boundary |
| #4 | Subduction occurs where the oceanic crust bends down toward the mantle at a... |
deep ocean trench |
| #5 | Plates pull apart at opposite direction at what kind of boundary? |
divergent boundary |
| Final Question | |
How is a new ocean going to split Africa in two in the future? (explain) |
1. There is a divergent boundary in East Africa 2. The divergent boundary creates a Rift Valley 3. As the plates get further apart the Rift Valley will get deeper and wider 4. When the Rift Valley gets below sea level the Red Sea will fill it in 5. The new ocean will separate Africa into two continents.
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