Spare 500g Iron Hooked Weight with Retractable Hook Subject_Astronomy the high-concentration AgNO3 reagent for

the high-concentration AgNO3 reagent for halide-precipitation tests

Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches

bending measurably under heat as differential thermal expansion of the two bonded metals drives the visible curvature

the larger geometry pushing pole separation wide enough that field lines extend visibly beyond the magnet body for filing maps

75-inch diameter pendulum bob with a removable threaded hook

Spare 500g Iron Hooked Weight with Retractable Hook Subject_Astronomy the high-concentration AgNO3 reagent forCast iron 500g mass carries a retractable hook for suspension from spring scales, pulleys, or beams, serving as a replacement piece for gravitational and force measurement setups.