Science experiments and projects that can be fun, and possibly dangerous. Some of the projects here should only be done with adult supervision.

"When I was 12 years old my history teacher in junior high school asked me to do a project for the upcoming history fair. She recommended building a model of the famous civil warships the Monitor and the Merrimac or perhaps a reconstruction of what Stonehenge looked like around three thousand years ago. Dissatisfied with these suggestions, I went off the the library to find something more dynamic to bring to the history fair. As I was flipping through an encyclopedia, it fell open to a page with a picture of a catapult on it. I read the article and instantly I knew what my project would be; a miniature working model of an onager type catapult. With the help of my father I built that catapult. It could hurl small rocks, tennis shoes, paperback books and other items across the classroom and made me the hit of the fair."