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Simulators which display cummulative generation graphs for variables.  Very cool data rich resource!  Includes Carbon cycle, demographis (human populations), Disease transmission, ecology, and energy simulations.

Muscogee County School podcasts:  math, science, language arts, science videos

The groundwater is cold, deep and twice as salty as seawater, but the water streaming out of Blood Falls, which teems with microbes, tells us that it is unlikely to be lifeless. "The fact that the [water] contains metabolically active micro-organisms that appear to be suited to life in a dark, cold brine supports the idea that life should persist throughout the subsurface," says Mikucki. If so, those microbes could be fuelling life in the Southern Ocean. By breaking down iron-containing rocks they might be dumping as much as 170 million kilograms of iron into the ocean each year, according to the researchers' estimates, helping to explain why marine productivity is seasonally very high near to the coast.

From the following article: The velocity of climate change Scott R. Loarie, Philip B. Duffy, Healy Hamilton, Gregory P. Asner, Christopher B. Field & David D. Ackerly Nature 462, 1052-1055(24 December 2009) doi:10.1038/nature08649

properties, orbitals, isotopes, compounds