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Did you know that you could build your own battery, using nothing more than some dimes, pennies, paper towels, and lemon juice? In this science project, you can use your homemade battery to make the needle on a compass move. You can also figure out which variables in building the battery will make the needle move the farthest.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.