The Kosmos Fun Science experiment kit Slime Organs playfully imparts basic anatomical knowledge. Children mix the slime powder and pour colored organs such as kidneys, heart, and lungs into the provided molds. The finished, squishy replicas are then placed inside the transparent plastic torso. A brain cutter, smart putty, and a large anatomy poster complete this set. The easy-to-understand instructions guide you step-by-step through the experiments and convey exciting facts about the human body.