Experiments

For parents with curious kids who are looking for a way to make their kitchen extra messy on weekends.

Showing 3 of 7

Medium25 minMedium mess1 and up

Water-bottle rocket

Pressurized air pushes water out the nozzle; the bottle goes the other way (reaction force).

physics · Oct 10, 2026

Winner

Easy15 minHigh mess1 and up

Cornstarch thickening fluid (Maïzena)

Some mixes feel liquid when you pour slowly and solid when you poke or squeeze hard.

physics, sensory · Sep 26, 2026

Hard30 minHigh mess1 and up

Salt ice fishing

Salt can melt a little ice into water; that water can freeze again around a string. A thin wire squeezed onto ice melts a path, and the copper carries the refreezing heat down to keep it going; the ice closes up behind.

physics, chemistry · Sep 12, 2026