Saturday, December 5, 2009
Friday, October 23, 2009
Sea Floor Spreading
Look at the model of sea floor spreading. Why is the magma able to escape through the oceanic crust?
Wednesday, September 30, 2009
Introduction to Layers of the Earth
Check out this powerpoint titled "Earth's Layers (layers of the earth)". Comment on your observations of the slides. Is it a clear presentation and easy to understand?
Monday, August 24, 2009
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