Baking Soda Crystals Experiments

This takes 2–5 days but yields stunning, visible rhombic crystals you can examine with a magnifying glass.

Shine a flashlight behind the jar. The crystals will glow with an icy, translucent brilliance. Better yet, look at them under a cheap microscope—you’ll see stepped layers and right-angled corners that look like a miniature futuristic city. baking soda crystals experiments