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

Tulgren filter funnel constructed from borosilicate glass extracts small organisms from soil samples through heat-driven migration collection methods

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

filtration 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.