Grades: 5-8
A fully comprehensive simple machines set for middle school. Your students can build 4 of each model type simultaneously. Models demonstrate: 1st, 2nd, and 3rd class levers; fixed, movable, compound and block & tackle pulley systems; wheel and axles with the force applied to both the wheel and the axle; inclined planes, screws and wedges; spur, crown, sprocket, rack and pinion, transmission and differential gear systems.

Key Concepts Levers - Balance, Tweezers, Stapler, Scissors, Rowboat, Piano, Hammer, Fishing Rod, Bottle Opener, Nutcracker Inclined Planes - Dump truck, Spiral Staircase, Axe, Archimedes Screw Pulleys - Tow truck, Block & Tackle, Crane, Elevator, Garage Door Gears - Eggbeater, Transmission, Carousel, Crank Fan, Conveyor Belt, Chain Saw, Rack & Pinion Wheels & Axles - Wrench, Screwdriver, Sawmill, Paddleboat

Contains 1432 pieces and color-coded building instructions to build 30 different models. A teacher's guide is included in the set, written to help meet NSES Standards. It contains key facts and inquiry based lesson plans with student worksheets for 15 of the models, plus, design briefs for students to create their own working models based on the concepts being studied. Comes packaged in a strong plastic storage case with moveable dividers and lock-on transparent lid.