3-in-1 Weather Station, 5.12" Diameter Pack Size_8 this 40-piece optical bench kit

this 40-piece optical bench kit pairs an aluminum track and sliding holders with lamp

this magnified animal cell model reveals organelle ultrastructure and cellular organization for advanced biology instruction

with 4mm sockets at each end for resistivity comparison

Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9-inch frame for organized storage during chemistry and biology experiments

Ten-volt moving-coil DC voltmeter at plus-or-minus 2

3-in-1 Weather Station, 5.12" Diameter Pack Size_8 this 40-piece optical bench kitThree in one weather station on a 5. 12 inch analog dial combining a thermometer, barometer, and hygrometer in a single classroom scale unit for monitoring room conditions at a glance.