Construction workers digging at ground zero have uncovered a 40-foot pothole and other features carved by glaciers about 20,000 years ago.
Unearthing these glacial features has been critical in preparing the foundation for Tower 4 of the new World Trade Center, being built by Silverstein Properties at the southeast corner of the site. Engineers need a clear understanding of the contours of the rock. Read the rest of this entry »
This unit of study involves learning about maps. Different map projections of the world and topographic maps are both models for Earth. Make a list of some of the models people use in their daily life. Include physical models, mathematical models, and mental models. List at least two examples of each and make sure you tell what it represents, why it is used instead of the real object or concept, and if it is a scale model.
You should use different examples than those previously posted.
Due: Friday morning, Sept. 26.
The first topic of study involves investigating what Earth science is really all about, and what subtopics Earth science encompasses. We learned that Earth has “spheres”.
What effect do you have on Earth systems? Which sphere do you live on and what are some ways you change the spheres? Are these behaviors beneficial or detrimental to Earth?
Write a response to this post that includes all parts of the question. Read the previous posts and tell if you agree or disagree with previous student responses.
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