This is a fun project that you can take wherever you go. It uses boats made of cardboard that move without your help! You can fit everything needed in your pocket.
Step 1: Materials
- Ziploc bag
- Altoids container
- Bath tub (for testing)
Step 2: Measuring the Boats
First is to measure the the boats. The boats will be 1/2 inch wide and two inches long. At the one inch point, put a mark on either side of the boat. Then, at the 1/4 inch mark at the top, put only one mark there only. Put the ruler on the two points and draw a line in between the points from the top to the side. Cut out the boats as shown.
Step 3: Slitting and Soap
Mark a 1/2 inch line at the back of the boat and cut it. This is where the soap will go. Take a knife and cut off fine pieces of soap.
Step 4: Testing the Boat
Take one of the boats and stick a piece of soap in the slit. Fill the bathtub with water and then wait for the water to settle. When that happens, set the boat into the water carefully. It should start drifting off in one direction. If it does, the boat works.
Step 5: Container
Put the soap shavings into a Ziploc bag and squeeze the air out. Roll up the bag and make several more boats. Take the Altoids container and put the boats and the bag into it and close the lid. This item can be taken out and used whenever you want. (Remember to ask if soap can be used in lakes and other public water sources.)