Rectangular Refraction Cell, Material: acrylic rectangular, Color: clear, excellent for showing refraction and internal reflection in water, and to measure its refractive index, has uniform wall thickness to eliminate distortions, Dimension: 6X3X6.2 CM
Rolling friction car kit, provides four cars for exploration into the force of friction, Each car provides a set of different material wheels (wood, fabric, soft rubber, soft silicone), Weight (lb): 1.0, Length (in):5.8, Width (in):6.5, Height (in):3.5
Torso model, hand painted, consists of 13 parts, removeable parts: eye with optical nerve, half brain, lung (2 parts), heart (2 parts), liver, stomach, front portion of the kidney, half of the bladder, large and small intenstines, with appendix flap opening, All parts labeled