Use This Link to Answer Questions 1-3 Alfred Wegener

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PLATE TECTONIC WEBQUEST

Use this Link to answer questions 1-3 Alfred Wegener

1.  What evidence did Alfred Wegener use to support his theory of continental drift?

2. Why do you think people didn’t believe the theory when Wegener first explained it?

3. Who were the two scientists that brought forth supporting evidence to Wegener’s theory and what was their evidence?

Plate Tectonic Animation: Continental Drift

Link for questions 4-7 : Plate boundaries

4. What are the three different types of plate boundaries? Describe each type.

5. Name a place on Earth where two plates are converging. Name a place where two plates are diverging. Name a place where two plates are sliding along each other.

6 .What are the three different types of convergent plate boundaries?

7. Explain what plate tectonics and ocean trenches have in common.

Link for question 8 : Sea-floor spreading

8. When comparing the age of the rocks on the east coast of North America to the rocks along the Mid Atlantic ridge, which do you think are older? Why do you think this is the case?

Link for questions 9-10 : Convection

9. What is a convection current or cell? Describe how it works. (draw a picture if you choose)

10. What are the two main sources of heat inside the Earth?

11. What type of tectonic forces create mountains?

12. How were the Rocky Mountains formed? Support your answer using information you have learned in this web Quest.

Plate Boundary PowerPoint Activity

Directions: Create a PowerPoint presentation showing the 3 different types of plate boundaries. The 3 types are Convergent, Divergent and Transform (Strike-slip) plate boundaries. You should have a total of 4 slides for the presentation and each slide should include the following:

·  The first 3 slides should have picture of the plate boundary

-Description of how the plate moves

-3 pictures of real life examples in nature of the plate boundary

·  The 4th slide should have a picture of the world and where the plates are located.

-Explanation of what causes the plates to move

-Picture of convection currents under the Earth’s crust in the mantle