Small Student Anemometer Meters_Electrical and herbivore feeding adaptations for

and herbivore feeding adaptations for teaching

Used to trace the invisible shape of magnetic fields

237kg hooked masses for measuring spring extension under load and calculating spring constants

Five-inch demonstration compass with a 4-inch magnetic needle and a printed compass map

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

Small Student Anemometer Meters_Electrical and herbivore feeding adaptations forCorrosion resistant and sized for hand held use, this small anemometer measures wind speed during earth science fieldwork and classroom weather investigations.