IQWST - PS3 - Activity 2.2

IQWST - PS3 - Activity 2.2

October 20/21

Learning Target

I can describe the Theory of Plate Tectonics

Success Criteria (Checklist)

• I have examined phenomena from the ocean floor

• I have explained the evidence that led to the development of the Theory of Plate Tectonics

• I have described the Theory of Plate Tectonics.

Open Ended

What may have caused the continents to move?

How is it happening?

• Wegener devoted the rest of his life trying to answer this question.

• It wasn't until after he died this question was answered.

Driving Questions

• Where are the mountains located on the map?

• How did you know those were mountains?

• Are there different elevations in the oceans?

• Is there any evidence of mountains in the ocean?

How could these mountains have formed?

Do we think all parts of the ocean floor are the same age? Or is some older or younger?

Open Ended

What do we know about the ages of the ocean floor?

Open Ended

Why might the ocean floor be older in some areas and newer in other areas?

https://www.youtube.com/watch?v=OGi1h0qvMX4&t=53s

Seafloor Spreading Demo

https://www.youtube.com/watch?v=pHWceRySDb8

https://www.youtube.com/watch?v=RA2-Vc4PIOY&t=240s

Open Ended

If the land is being created at the Mid Ocean Ridge, and it has been for millions of years, why hasn't the Earth gotten any bigger?

Why do you think trenches are only located in certain parts of the Earth?

How do you think trenches form?

Success Criteria (Checklist)

• I have examined phenomena from the ocean floor

• I have explained the evidence that led to the development of the Theory of Plate Tectonics

• I have described the Theory of Plate Tectonics.

Conclusions

• There are mountain ranges on the ocean floor.

• The age of the ocean floor varies.

• There are trenches (canyons) on the ocean floor.

Open Ended

What new questions do you have about how the Earth is changing?

Work-Time/Conferences

https://forms.gle/4JPx1BRNcgAFAugW9