Rubber band powered boat

This is a simple creation ( click the images to have a better look)





First take the plastic tray and paste the hook in the bottom of it at one end make a hole fix the shaft and paste the other hook inside the tray outside paste the propeller.In front of the tray fix two planks of wood.Down side fix the keel.plase the rubber band between the hooks.Fill the bath with water and wind the rubber band by turning the propellar then release the boat to water.

This is what you need

• a plastic tray
• a propellar
• a keel
• shaft
• rubber band
• two hooks
• two pieces of light wood