Video: HOWTO make waterproof sand at home

YouTuber IncredibleScience has a great at-home science project that's kid-friendly: making waterproof sand.

All you need is a tray or baking pan lined with paper or plastic, some colored sand, and some Scotchgard or equivalent, and about half an hour in a ventilated area.

PROTIP: In the video, he mixes two colors in a glass of water, but once that happens, it's pretty hard to separate them.


Previously: Waterproof sand won't get wet (2008)