3-in-1 Weather Station, 5.12" Diameter Pack Size_8 600 turns) and a load

600 turns) and a load hook beneath the core let students isolate the effect of turns from current on electromagnet pull force

each disc 37 mm in diameter and 11 mm thick

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

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

Selected through four rotary-switch decades from 0 to 11

3-in-1 Weather Station, 5.12" Diameter Pack Size_8 600 turns) and a loadThree 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.