US$ 11.13
palisade and spongy mesophyll
Six hand-picked rock specimens showcase varied igneous
carrying a red-and-blue spirit column and screen-printed dual scale from -10 to 50°C and 20 to 120°F for long-term readability
Plastic-bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns
each plain-shanked for clamping or holding
Slotted Mass Set, 1000g, Zinc-Cast Diameter_6mm palisade and spongy mesophyllCast in zinc and totaling one kilogram across nine slotted weights plus a hanger, this mass set supports physics experiments on force, torque, equilibrium, and balance calibration.
US$ 11.13
US$ 73.99
US$ 26.90
US$ 27.01