Teacher Inorganic and Organic Chemistry Molecular Model Set, 101-Piece Subject_Biology Plastic-bodied wave apparatus with eccentric

Plastic-bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns

Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary

Ratchet-stopped nickel-plated brass 25 mm micrometer screw gauge reading to 0

Reel of 250-foot 24 SWG nichrome resistance wire

this metal wave helix demonstrates pulse propagation

Teacher Inorganic and Organic Chemistry Molecular Model Set, 101-Piece Subject_Biology Plastic-bodied wave apparatus with eccentric101 piece teacher grade molecular model set with 51 atoms and 50 bonds covering carbon, hydrogen, oxygen, nitrogen, halogens, sulphur, and phosphorus for organic chemistry work.