The ScienceWiz Collisions & Trajectories Kit combines cradles, catapults, and collisions with pendulum art to explore the science of motion. Learn about elastic and inelastic collisions, kinetic and potential energy, momentum, circular motion, and pendulums. You'll explore collisions with a Newton's cradle, build and aim a catapult, lift off with stomp rocket science, collide collision cars, ram barriers with marbles and carts to explore momentum, paint with pendulums, and more. This kit includes a beautifully illustrated 36-page science book with materials for 18 exciting projects.ScienceWiz Collisions & Trajectories Kit