The English Scientist, Neil Downie, has written three volumes of Saturday Science Projects for high school and college students in England. His designs are remarkably original and thoughtful, explaining the math and science of every project. He has given us permission to design new versions which challenge
younger minds although are no less thoughtful.

Build a vibrating motor block that will drive the Vibrobot scampering around the room. Experiment with different kinds of 'feet' to discover just which work best for the desired results. An introduction to the art of experiment. Begin to understand friction and get some control.