Experiments

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

Showing 3 of 7

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

Winner

Easy60 minHigh mess3 and up

Density Layers

Different liquids stack because some are denser — more mass in the same amount of space. Salt water can hold up an egg. A balsamic drop falls through oil — then the oil it dragged down floats back up.

physics · Sep 5, 2026