Fold simple paper boats from any paper. Set them at one end of the bath. Race by blowing. No touching allowed. Winner is first to the other end. Boats that sink are rebuilt. Test which materials float longest.
What you need
- paper or small lightweight containers
How to do it
- 1Come on, let's fold a paper boat and race it!
- 2Set the boats at one end of the bath. On go, blow to propel. No hands on the boat.
- 3First to the other end wins the round. Rebuild sunken boats.
- 4Try a different material next. Does it last longer? That question is worth investigating.
Variations
- Korb-Tür: If they won't blow — just push the boats with a cup or let water waves carry them. The race still happens, the blowing is optional.
- Ausstieg: One final boat ride. Let it float to the drain and watch it leave. 'Safe travels,' as it goes down. Ceremony over.
💡 Parent tip
The paper boat will sink eventually. That creates urgency. Have extra paper ready so sinking is an event, not a disappointment.
What your child develops
- Buoyancy — hands-on exploration of why some shapes float and others don't
- Lung control — blowing with consistent pressure requires breath regulation
- Origami basics — simple boat fold introduces following spatial instructions
Safety notes
- Never leave children unattended in the bath.
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