Online+resources+for+Geo+activities

Science Resource Education Resource Center - well funded site from Carleton College, easily searchable, focused on undergraduate education.

Physics Education Interactive Simulations - self-explanatory, click on "Play with sims" - Check out [|Radioactive Dating Game]

http://www.classzone.com/books/earth_science/terc/content/visualizations/es2305/es2305page01.cfm?chapter_no=visualization

http://en.wikipedia.org/wiki/Charles_Lyell

http://www.stanfords.co.uk/articles/famous-travels/lyell-principles-of-geology,301,AR.html

http://abyss.uoregon.edu/~js/lectures/age_of_the_earth/age_of_the_earth.html

http://www.talkorigins.org/faqs/geohist.html

http://books.google.com/books?id=a7S3zaLBrkgC&pg=PA65&lpg=PA65&dq=walcott+1893&source=bl&ots=Z9wkM6l-7w&sig=RIyIjLuWL0AhD1vWcYqB_LuHA-0&hl=en&ei=gsgITuv6MOvSiAKz5Jm7DQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CCEQ6AEwAQ#v=onepage&q=walcott%201893&f=false