My son could probably get lost in this site~ a chronological timeline of the story of DNA, interactives in learning about DNA along with lesson plans etc..
based on the Series this web adventure teaches learners the forensic investigation process along with problem solving the graphics are great and navigation is very good too~
You can access the material even without giving them your email. Not all areas have been completed. Even though it says K-12, I don't see high school material.
This has a wealth of natural science information.
"Sponsored in part by the Interagency Education Research Initiative,
the Homeland Foundation and the University of Michigan Museum of Zoology.
This material is based upon work supported by the National Science Foundation."
"The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny)."
Each page contains information about a particular group, e.g., salamanders, segmented worms, phlox flowers, tyrannosaurs, euglenids, Heliconius butterflies, club fungi, or the vampire squid. ToL pages are linked one to another hierarchically, in the form of the evolutionary tree of life. Starting with the root of all Life on Earth and moving out along diverging branches to individual species, the structure of the ToL project thus illustrates the genetic connections between all living things."
This looks like an outstanding natural science collaborative resource!