The Institute for Learning Technologies offers a wealth of information for teachers who are interested in technology integration. Examples of current projects are here as well as links catagorized by science area. This foundation offers a searchable index of their own publications, information on the AIMS magazine and workshops, as well as a monthly puzzle. AIMS stands for Activities Integrating Math and Science and their work is fantastic. This is an outreach site of Roger Bumgarner, Ph.D. of Washington University for elementary teachers wanting to teach about DNA in a hands-on way.
Lesson plans are available.
Science Fair Project Guidelines from the NSF Help from NSF on school science fairs. This is the site from which our Neighborhood Weathernet is based. This site offers a wealth of physics experiments that can be performed with equipment that most folks would find just around the house or classroom. The most interesting thing here is a list of 35 terrific questions, things you wonder about all the time, with scientific answers that you can understand. This site offers some helpful hints for your science fair project on controls and graphs.