Investigate and experiment with 8 functioning lever and pulley models designed to demonstrate science and technology concepts related to three classes of levers and fixed, moveable and combination pulleys and block and tackle systems. Build 8 different real-world models, one at a time. Models demonstrate 1st, 2nd and 3rd class levers along with fixed, moveable, and combination pulleys. Set includes building instructions with real-life photo and key facts and comes packaged in a strong plastic storage case with moveable dividers. 178 pieces. Ages 8-12.
