A soap is made up of fatty acids. It is mainly used for bathing, washing, and cleaning. But did you know that a soap can drive a boat? In this experiment, we may be able to find if a boat can really be driven by an ordinary bath soap.
Can a soap drive a boat?
A soap can drive a boat because it is made of fatty acids. Fatty acids have saturated molecules and therefore it is fast-moving when put into water.
- a small tub or basin
- a foil paper or any paper
- a thin soap piece
- Prepare all the materials needed.
- Put a half-full of water on the basin or tub.
- With the use of scissors, cut out a rectangular type of paper boat or a foil boat.
- Make sure to flatten the surface of the boat.
- Make a small circular cavity at one end of the boat.
- Insert the soap piece at the small circular cavity of the boat.
- Place the boat gently on the surface of the water in the tub or basin.
- The boat will then accelerate as if it has an engine.
RESULTS / ANALYSIS OF DATA
In this experiment, you can record what time did the boat sailed forward and what time did it stopped. The surface tension from the soap and the water acts as the propeller of the boat. As you will see, the boat will drive along forward and speed across the water. It applies the Third Law of Motion by Newton: “In every action, there is an equal and opposite reaction”.
Since the boat moved forward due to tha rapidly-moving soap molecules, it is concluded that a soap can drive a boat, thus the hypothesis will be accepted.