We recently finished reading Along Came Galileo by Jeanne Bendick, the same author who wrote Archimedes and the Door of Science. Both are excellent, well-written books designed to introduce children to these men's lives and ideas.
The girls also talked about Galileo in their science class at our co-op. Below are pictures of the projects they completed. Some of the gumdrops didn't survive the journey home, but you get the picture. ;-)