Grades 4 - 8. The Pulleys in Motion Class Set provides hands-on activities that give students practical experience with this simple machine. Includes 18 single pulleys, 12 double pulleys, and 12 triple pulleys along with spring scales, twine, pulley links and a 32-page resource guide! 70 pieces total!
8 years & up. Experience the power of gravity with the Gravitrax Starter Set! Build your own action-packed track system to send your marbles racing while learning about gravity, magnetism, and kinetics. With over 100 pieces and 18 different construction elements, discover how the laws of physics affect the track your marble takes with curves, crosses, freefalls, and even a cannon. Experiment using different heights and angles to control the speed of the ball. Build your track using the construction… More »