Leclanché Cell Electrochemistry Demonstration Chemistry_Molecular Model Sets each 20mm on edge with

each 20mm on edge with a top hook for suspending in water during Archimedes-principle and buoyancy experiments

Black 3-inch circular disc 0

Used to read the microampere-scale currents found in photodiode and transistor-bias circuits

Jumbo three-dimensional frog dissection model with keycard demonstrates amphibian anatomy and organ systems for detailed vertebrate teaching

Leclanché Cell Electrochemistry Demonstration Chemistry_Molecular Model Sets each 20mm on edge withZinc and carbon electrochemistry demonstration cell with electrolyte, illustrating the primary battery chemistry behind the Leclanche cell the historical predecessor of the modern dry battery.