89-Atom Molecular Model Set Capacity_150mL configured to make and break

configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations

Engineered with a higher spring constant than a classic coiled novelty spring

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

half-blue painting

the elongated triangular body fitting wider-beam refraction setups and class-front dispersion demonstrations

89-Atom Molecular Model Set Capacity_150mL configured to make and breakUsed to build a moderate range of organic and inorganic molecules, this 89 atom set in a compartmented case supplies durable plastic atoms and connecting links for chemistry investigations.