Three-Dimensional Solar System Teaching Model, 13" Plastic Labware_Plastic Burettes the lower-friction variant of the

the lower-friction variant of the metal-bearing bench-clamp pulley in the series

spindle formation

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

Five-pack of 3/4-inch steel marbles

hand-cranked so students trace how shifter engagement alters gear ratios and output torque selection

Three-Dimensional Solar System Teaching Model, 13" Plastic Labware_Plastic Burettes the lower-friction variant of theDemonstrates relative planetary motion on a 13 inch three dimensional solar system model with a 5. 9 inch sun and eight movable planets, paired with an experiment guide.