Learn more at http://www.stevespanglerscience.com/experiment/homemade-compass There is one tool that is sure to give you guidance if you get lost, a compass. But what could you do if you forgot to pack this useful tool in your survival kit? Easy! Float a needle on top of a standing pool of water. Well, there's a bit more to creating a compass out of a needle and some water, but you can do it right at home with just a few tools.
Make Your Own Compass - Sick Science! #075
Grade Level Grades 6-12