The Think & Learn Load & Launch Science Spinners lets kids load, pump, and launch spinning tops in their own exciting experiments as they discover early science concepts like mass, force, and the laws of motion. With 10 spinners to mix and match and more than 50 experiment cards to try, the combinations your preschooler can explore are seemingly endless! Inspiring little learners to be big thinkers. Science Concepts: Preschoolers are introduced to basic physics as they try out the different experiments that test concepts like mass, energy, and force. Scientific Thinking & Experimentation: As preschoolers mix & match their spinners, they can try out some of the experimental play ideas, or test their own hypothesis with new ones! Problem Solving: Kids can exercise their problem-solving skills as they use trial & error to run each experiment to its exciting launch.