Kid recently found some driftwood and carved a couple of pieces into boats. He watched them float and move in the water, then he experimented with ways to make them move with more direction and with different speeds.
He found some leaves and feathers and attached them to different boats, watching how the wind caught them. The boats with the leaves sailed better than the ones with feathers.
When we got home, he put together some more boats from materials he found and added keels too. He then experimented with his new sails and watched how they caught wind and he found ways to improve them more and more.
The neighborhood kids have also grown interested in his new hobby and they often go to the lake to race their boats. This new hobby has sparked a lot of conversations about engineering between the kids, consistently making their boats better and better.
This is a video of when he first found the driftwood and was experimenting with it. The light on the water seemed magical and this whole experience has turned out to be quite magical in so many ways.