(Simple Electric Circuit)
Combine the joy and excitement of mechanical toys with your science project by constructing an air propelled motor boat. This is also a good way of learning about simple electric circuits. Your boat will have a battery, a switch and a motor with propeller. This can be used as a science project related to electricity, force or floatation. This idea is good for a display project, an engineering project and an experimental (investigatory) project.
With your kit you may also receive four sheaves that may be used as wheels. Sheaves are almost like the ring in a bicycle; they are just missing the tiers. Students often use sheaves to make pulleys as a part of a simple machine project.