WQ USGS This Dynamic Earth
To go to this site, type this address exactly:
http://pubs.usgs.gov/gip/dynamic/dynamic.html
At this site are six main sub sites (listed below). Spend 45 minutes looking over these sites and
writing about anything you didn't know (you may do in any order). To keep the main page
windowed, right click on the sub sites and pick "open in a new window." The sub sites are
numbered so if you run out of room on the front, use the back.
1. Historical perspective
2. Developing the theory
3. Understanding plate motions
4. "Hotspots": Mantle thermal plumes
5. Some unanswered questions
6. Plate tectonics and people