Handheld Tally Counter with 4-Digit Display Subcategory_Gas Washing Bottles Amoeba Proteus model at 1000x

Amoeba Proteus model at 1000x magnification reveals extended pseudopod

Continuously motor-driven to supply a steady high-voltage source

Three-legged spherometer with legs spaced 40 mm apart and a vertical scale reading -10 to +10 mm at 0

3 glass holds 25mL with 0

this physics kit supports hands-on exploration of basic circuit components and classroom-scale experiments

Handheld Tally Counter with 4-Digit Display Subcategory_Gas Washing Bottles Amoeba Proteus model at 1000xHandheld mechanical tally counter with four digit display and finger ring tracks cell counts, plankton samples, and population data in lab and field work.