How to do the science fair:
How to Do a Science Fair Project – Science Project | NASA JPL Education
The Scientific Method
Investigation Ideas:
Project Ideas
Inspiration, resources, and help
Morrison and Dinosaur Ridge
USGS (map data of geography, geology, water, energy, biological resources, ecosystems, and earthquakes).
Colorado Government (Data and pointers to data on traffic, parks, energy, conservation, policies, and county records).
Periodic Table and Precious Metals
Books
MythBusters Science Fair
Science Fair for Dummies
Supplies