Battery-Operated Ticker Tape Timer with Holder Lab Equipment and Supplies_Plastic Labware and epochs for classroom reference

and epochs for classroom reference during earth science instruction

with 4mm sockets at each end for resistivity comparison

with dual rotation dials for quantitative analysis of gear ratios and rotary motion transmission

more uniform flame than a standard Bunsen through a top-mounted grid disperser

scientific method practice

Battery-Operated Ticker Tape Timer with Holder Lab Equipment and Supplies_Plastic Labware and epochs for classroom referenceBattery operated two speed ticker timer in a scratch proof shock absorbing case, printing 25 or 45 dots per second for velocity and acceleration measurement across dynamics experiments.