Does your child love dinosaurs? Give your budding paleontologist the chance to flex his exploratory muscles by helping him create his very own fossils to hide in the sandbox or at the park. This project is perfect for those warm spring and summer months, when spending time outdoors is especially important (not to mention pleasurable!) in order to keep your child active when he's not in school. This is an easy project for even younger kids to do without much more than supervision.