Lewis structure Set, Help students determine the types of bonds in a substance, draw Lewis structures, and construct models of molecules, Chemists find the use of models helpful to construct Lewis structures and study covalent bonding
OrthoBones* Model, standard Ulna Left, hard cortical bone and softer, spongy bone (spongiosa), Anatomically accurate, Realistic haptics, Simple handling, Two-component structure, Excellent results, Dimensions: 28 x 4 x 3 cm, weight: 0.023 kg
Human Anatomy Model, The knee bone is connected to the arm bone, Eight awesome activities explore the human body from the inside out, including optical camera, tooth check-in, taste test, handy thermometer, pumping heart, lung simulation, torso model and DNA design