US$ 69.99
holding under at least 100 Newtons of separation force after hand-evacuation of the air between them
high-temperature grid flame for chemistry ashing
circulatory
and 38mm lens holder - an inexpensive starter platform for image-formation experiments
and d2sp3 atoms for hybridization-and-geometry visualization
Simple Machines Wheel and Axle Model Subject_Physics holding under at least 100Wooden wheel and axle simple machine model on a 9. 5x3. 375 inch base, demonstrating how a crane lifts loads through the mechanical advantage of a large wheel turning a small axle.
US$ 69.99
US$ 44.00
US$ 11.00
US$ 44.00
US$ 44.00
US$ 32.50