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Perfect for School/University/Hospital/Office
that are designed so only the proper bases ft together
Helps kids learn to tell the time with ease
subtracting
Size: 215mm x 170mm x 140mm
Gagnon's Potometer Dice Perfect for School/University/Hospital/OfficeFor the demonstration of transpiration rates and rates of water absorption by a cut shoot under various external conditions. The whole apparatus is filled with water and a plant shoot is sealed into a stopper which fits the end tube. The open end of the capillary tube, which is graduated in millimeters, is placed into a beaker of water. An air bubble is generator by dipping the graduated tube out of and back into a beaker of water. The air bubble can
