You will need

• 1 Bowl
• Washing-up liquid
• 1 Match
• Water
• 1 Knife

What to do

1. Fill the bowl with water.
2. Split the match slightly at its lower end using the knife.
3. Smear the split end with some washing-up liquid.
4. Place the match in the water and watch what happens.
5. The soap will dissolve slowly in the water which causes a backwards movement of the water molecules. This lets the boat move forward.
6. If you want to repeat the experiment, change the water in the bowl and use a new match.

You can also watch this experiment here: