TEACHERS CLASSPACK
TK-700001 CLASSPACK of 5 Physics Simple Machines. Save $4.00 each, total saving $20.00.
Establish a foundation in physics by building models of all six simple machines: levers, pulleys, inclined planes, screws, wedges, and wheels and axles. Assemble and use a spring scale to measure how the machines change the direction and magnitude of forces, making work easier to do. Ages 8 and up.