Science

A student- made glossary of scientific terms with illustrations and definitions added by the class (using original digital photos or those from other online Creative Commons sources, such as Flickr).
A taxonomy of living things with information about each branch as you study Biology over a full year.
Designs of experiments (and resulting lab reports) for a chemistry class.
Observations from field sites, such as water-testing in local streams, weather observations from across your state, or bird counts during migratory season. Collaborate with other schools.
Detailed and illustrated descriptions of scientific processes: how mountains form, etc.
A physics wiki for those wicked-long problems so the class can collaborate on how to solve them (a “wicked wiki”?).
Data collection
Periodic table projects - naming elements