1. Your book describes using paleomagnetic evidence for seafloor spreading. What is paleomagnetic evidence and how does it support the concept that the seafloor is spreading? Make sure to cite your source! (4-6 sentences)
2. What techniques do we use to study the interior of the earth? How do these techniques provide evidence that the outer core is actually a liquid? (4-6 sentences)
3. How many different plates make up the Earth today? Which plate is the largest? (2-3 sentences)
4. Describe the three different types of plate boundaries, in your own words (5-7 sentences)
5. What type of boundary is present at each and why? (3-4 sentences)
North American Plate and Eurasian Plate
Australian Plate and Pacific Plate
Indian Plate and Eurasian Plate
6. Your book talks about the formation of the Rocky Mountains and how scientists were still unsure as to how they formed so far inland from where the Pacific Plate is subducting below the North American Plate. Since this book was published, new hypotheses have emerged to explain this. Describe these new hypotheses and what evidence is used to support it. (6-10 full sentences) *Hint: here are two places to start (https://www.nps.gov/parkhistory/online_books/romo5/wegemann/sec6.htm) and (http://news.nationalgeographic.com/news/2011/03/110302-rocky-mountains-colorado-mystery-new-theory-earth-science/)*
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