Make Your Own Baking Soda Growing Snow Tree Experiment at Home Looking for a winter science craft that kids will love? This Baking Soda Growing Snow Tree Experiment is frosty, magical, and wonderfully simple. With just a few basic ingredients, you can create a snowy landscape where sparkling baking soda crystals form like real winter frost. Ingredients (makes one snowy scene): Baking soda (sodium bicarbonate) Hot water Shallow containers such as plates, dishes, or a foil-lined tray Spoon or stir