Mothball+Boat

Energy can come from the most unusaual things. Who ever thought a mothball could be a source of energy? Use a mothball to move a boat in your bathtup.

To make a mothball boat you need:
 * a mothball
 * a styrofoam meat tray
 * scissors
 * a piece of string

Directions:
 * 1) Cut a boat shape from a styrofoam meat tray.
 * 2) Cut a small pie-shaped notch in the stern of the boat.
 * 3) Poke a hole on each side of the triangle you've cut.
 * 4) Wedge the mothball into the notch
 * Thread the string through each hole, tie it, and position the string to help hold the mothball in the wedge.
 * 1) Lower the boat carefully into the tub or sink and watch it move. The boat will move only if the tub is very clean.


 * What's the problem?**
 * **Ask** -
 * **Imagine** -
 * **Design, Build** -
 * **Improve** -


 * That's engineering**

>.
 * Engineering ideas**

Challenges for you to work on...
 * Do It**


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 * [|Fun Science Activities for Kids] - used with permission

..r1 2a