With the Bouncy Planets experiment kit from Kosmos, you can create your own colorful, elastic planet-shaped bouncy balls. The set contains special multi-colored granules and a matching mold for your own space-themed creations. After pouring the granules into the spherical mold, the mixture solidifies into bouncy balls within just a few minutes. A multilingual manual guides you step by step through the experiment and provides background knowledge about space. This set combines creative crafting with physics experiments and is ideal for anyone who enjoys hands-on scientific projects.