Simple conductivity tester shows the electrical properties of a variety of liquids.Provided with a plastic tumbler. Indicator consists of a molded plastic socket mounted on a PVC baseBase has binding posts for the connection of a two-wire cordTwo-wire electrodes are internally...

Simple conductivity tester shows the electrical properties of a variety of liquids. Indicator consists of a molded plastic socket mounted on a PVC baseBase has binding posts for the connection of a two-wire cordTwo-wire electrodes are internally connected to the lamp circuitCover...

This is an excellent molecular model set for student to understand the basics of molecular structures. Colored plastic balls represent atoms, while 3 different lengths of springs represent different types of molecular bonds. Comes with instructions, springs, and 35 colored plastic...

Demonstrates AC and DC properties. With this unit both alternating & direct current can be demonstrated. By turning the handle, the current that is produced can be seen as it lights the lamp. The quicker the handle is turned the brighter the light. Each unit is cleaned &...

A simple type of electrolysis apparatus, but demonstrates the principle as efficiently as other expensive apparatuses. Simple and economical type of electrolysis apparatus. Platinum electrodes are attached to insulated connecting rods, which are attached to binding posts mounted...

Students can demonstrate univalent and multiple bonds by linking the atoms in this set, represented by colored plastic balls. Includes instructions, ten 2" L springs, and 54 colored plastic balls with holes: 10 black (carbon), two blue (nitrogen, 1-1/4" dia.), 28 yellow...