Ganong's Potometer with Glass Stopcock and Wooden Base Subcategory_Inorganic Compounds Zinc-plated rectangular steel bar-magnet pair

Zinc-plated rectangular steel bar-magnet pair packaged with keepers that bridge the poles in storage

Complete 12-piece simple machines set covering inclined plane

paired with a compound microscope to watch smoke particles jostle under molecular impacts

featuring a 20cm terrestrial globe with political boundaries and a graduated plastic meridian arc for map-reading work

and an ignition light that fires on compression

Ganong's Potometer with Glass Stopcock and Wooden Base Subcategory_Inorganic Compounds Zinc-plated rectangular steel bar-magnet pairClassic Ganong design on a wooden base uses a glass stopcock to isolate the capillary reservoir, supporting transpiration rate measurement in plant physiology labs.