Gray Molecular Model Atom, 2.2cm, 4 Holes, 10-Pack Base Shape_A-Shaped Farmer's design suspends a plant

Farmer's design suspends a plant cutting in water with a graduated reservoir for measuring transpiration uptake in plant physiology coursework

Three primaries (red

sized for measuring direction and field strength on the lab bench

dimensioned to drop into the PH0652 optical bench for hands-on study of Malus's law and crossed-polaroid extinction

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

Gray Molecular Model Atom, 2.2cm, 4 Holes, 10-Pack Base Shape_A-Shaped Farmer's design suspends a plantFour hole gray atoms in a 10 pack at 2. 2cm diameter, conventionally standing in for metals at four bonded centers in ball and stick molecular model kits.