Monday, October 20, 2014

Week of October 21-October 28

What is Plate Tectonics?


 Workbook  p. 182-203
BIG IDEA!

The Earth's crust consists of tectonic plates that move relative to each other changing the surface of the Earth over time.

 I can's...


  •  explain the theory of plate tectonics
  • describe the evidence that supports the theory of plate tectonics?
  •  I can explain that there are three types of stresses related to the movement of the plates?
  •  describe and relate the three main hypotheses that explain how the tectonic plates move?
  •  relate how plate tectonics affects society and science?
  • investigate the relationships between plate boundaries and and geological features and events using maps
  •  describe and model the three different types of plate boundaries?
  •  describe what type of landforms or geological events are associated with the different types of plate boundaries?

What evidence supports the theory of plate tectonics?

1.  Sea-Floor Spreading
2.  Magnetic Field Reversals


3.  Locations of earthquakes, volcanoes, and folded mountains


What causes tectonic plate motion?



Question:   What are the 3 processes that are responsible for moving the tectonic plates?

 How do the tectonic plates shape the Earth's surface?

Here are the forces or stresses involved that deform the Earth's crust:



Where do these stresses occur?

What are the 3 types of plate boundaries?



 Question:  Can you match stresses to the plate boundary they occur at?

What are some examples of landforms created by these different plate boundaries?

Convergent Plate Boundary

Himalayan Mountains

Divergent Plate Boundary
The Great African Rift Valley
Mid-Atlantic Ridge
Transform Plate Boundary

San Andreas Fault - California

Links:







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Monday, October 6, 2014

  • Week of Oct. 6th-Oct. 16
  • The Great Super Continent - Pangaea - this massive landform was created about 270 million years ago and broke up about 220 million years ago

  • What about the future?

Digital Timeline Maker

 Questions to Consider:

1.  What is the hypothesis of continental drift?
2. Why was the hypothesis of continental drift rejected initially?
3.  What are the 3 types of evidence that supports continental drift?
4.  What are the super-continents of Pangaea and Gondwana?
5.  What is the theory of plate tectonics?
6.  What are the 3 types of evidence that support the theory of plate tectonics?
7.  How does the process of sea-floor spreading work?
8. What is a magnetic field reversal?
9.  How do the locations of earthquakes and volcanoes relate to the theory of plate tectonics?
10. What are some of the early contributions of scientists who developed the theory of plate tectonics?

What Evidence Supports Plate Tectonics?

1.  Sea-Floor Spreading


2.  Locations of Volcanoes and Earthquakes
    Tectonic Plate Boundaries - red dots indicate locations of volcanoes and frequent earthquake activity

     3.  Magnetic Field Reversals and Properties of the 
    Sea Floor







    • The Earth's Magnetic Field



    Links and Videos:




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