Weather Projects for Young Scientists by Mary Kay Carson is a good book for ideas for science fair projects. This book is more aimed at fourth or fifth graders. The experiments are more time consuming and complex, but some are easy enough to do on a boring rainy day too. There is an easy one called Rain Prints. You first put a pair of pantyhose over an empty coffee can and secure it with a rubber band. Then sprinkle a fine layer of powdered sugar over the pantyhose. Then set it outside in the rain for a few seconds. Once back inside observe and compare the raindrop prints made in the sugar. Compare shapes and sizes. There are so many fun and easy ones like this one! There is also different websites to visit that are In the back of the book to get more information on weather ( )