Metnet
Primary and secondary schools around the world exchange weather observations daily during a period of two weeks using an online database. However simple your weather instruments you can take part in this project. MetLink is for students of all ages, worldwide to: use the Internet to enhance weather studies, record weather data, enter daily reading into the weather database, link with other schools and exchange weather news, provide email links to international weather contacts, develop weather projects, plot graphs and compare results, write and publish articles about weather events.

Spike's Science Projects
Over 400 science projects from various scientific fields including animals, atoms, ecology, meteorology, and microorganisms.