Free and Easy Science Play Set With this science kit you can simulate a volcanic eruption with a chemical reaction (baking powder and acid). Learn that a volcanic eruption deposits a layer of fertile ash and lava. That is why volcanic slopes are also very suitable for arable farming. Specifications: Color: multicolor Gender: junior Material: plastic Package dimensions: 22 x 17 x 6 cm (LxWxH) Age: from 8 years Contents 1 Volcano 2 Cups 1 Eye protection 1 Pipette 2 spoons Jar of baking powder Jar of gluconic acid