ahlbergj wrote about a new science club he was starting and asked for ideas.
Back in the Dark Ages before the Web students from diverse areas reported such local factors as temperature and humidity via email. The project coordinator then compiled the results. A similar project where the results are expanded and posted on a website would add a virtual component to the various science stations.
There are a multitude of variable that could be gathered in the same way. You might even consider some behavior variables to measure.