Getting a wee tyke in to Ћ bath（ つ﹏╰）daunting! Try Safe & Edible Glow Water it looks fun ヅ A recipe for glow water. It's super easy to make (no staining!) and is affordable to boot! Safe for even the littlest explorers. From Fun at Home with Kids
Did you know if you draw on a lightbulb, that the design will cast on your wall at night. How adorable for a child's room -- Even let child design their own lightbulb and watch their art project on the wall!
Use chemistry to make a bouncing polymer ball, then alter the procedure to see the effect the changes have on the characteristics of the bouncing ball.: Make a Bouncing Polymer Ball - Introduction and Materials