6-Hole Premium Wooden Test Tube Rack with Pins, 9.4", for 25mm Tubes Category_Lab Equipment Variety pack to help with

Variety pack to help with experiment of contrasting resistances and temperature

Metal spouting cylinder with multiple outlet holes at different heights

relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations

used to map the circular field around a current-carrying wire and confirm the right-hand rule

6-Hole Premium Wooden Test Tube Rack with Pins, 9.4", for 25mm Tubes Category_Lab Equipment Variety pack to help withHand crafted hardwood test tube rack with six 25 mm holes and six drying pins on a single tier, sized at 9. 4 inches long for chemistry and microbiology classroom stations.