Charcoal Crystal Garden 2

The charcoal crystal garden is a classic crystal-growing project. You use charcoal briquettes, cardboard or a sponge, ammonia, salt, bluing, and food coloring to grow a crystal garden. The components of the garden are not edible, so adult supervision is recommended. Materials charcoal briquettes, cardboard, or pieces of sponge or […]

Crystal Garden (Anne Helmenstine)