Free online geodetective program for teaching earth history and physical earth science by the National Park Service. Activities written to encourage deductive and inductive reasoning through hands-on discovery learning.
Human history on earth has spanned over one million years, and along the way there have been some amazing developments that have helped shape the landscape of human health, enlightenment and longevity.
American Lion from Patagonia by Sebastián Rozadilla
Radioactive Wastewater From Fracking Is Found in a Pennsylvania Stream