Cool site on genetics w/online games for review with links to information on the topic
Grade school level astronomy activities
Interactive Mars habitat - great for SMART Board
free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X
A drop of mercury in a watch glass is covered with a solution of potassium chromate in concentrated sulfuric acid. An iron nail is positioned so that it nearly touches the mercury. Eventually, the mercury drop starts to beat rhythmically, like a beating heart.
Fascinating, video rich site makes available a wide array of magnified images captured by microscope
anyone might find useful there is powerpoints, a cute poem, and even a rap the kids could do