Build a top with parts of different sizes and weights and see how long your top will spin.
Tops stay upright because they spin fast.
When they slow down they wobble and all over. Tops slow down because of friction with the air, the table surface and other tops if they bump each other. Gyroscopes and yo-yos are super spinners, too. These are excellent ways to learn about inertia, center of gravity and angular momentum. Science in Toyland was created by the California Museum of Science and Industry , with support from members of the Science Museum Exhibit Collaborative .