This Miniature Catapult build-yourself kit allows students to literally play with the physics of catapults. Educational topics demonstrated include force, acceleration, center of mass, vector components, Hooke's law, parabolic trajectories, and class 2 levers. Correlates with NGSS standards 3-PS2-1&2, MS-PS2-2, and HS-PS2-1. The kit includes a catapult base, left and right sides, lever arm, 8 rubber bands, 4 wood screws, 3 dowels, 1 c-shaped screw hook, ping pong ball, cardboard storage box, and instructions. A medium Phillips screwdriver is required but not included. Part of the Garage Physics line by Eisco. Suitable for classroom and home STEM exploration under adult supervision.