Plastic Stackable Sifter Set, 8", 5-Pack Neulog_Accessories this pot holder secures specimens

this pot holder secures specimens during gravitropism and centrifugal growth-response experiments

Pairing a hinged-mirror ray box with lenses

the workhorse decade for introductory Wheatstone-bridge and Ohm's-law work

Pack of 50 assorted one-hole rubber stoppers with 5mm hole provides acid and alkali resistance for laboratory vessel sealing with tubing pass-through

Very narrow 5-degree apex glass wedge prism with 87

Plastic Stackable Sifter Set, 8", 5-Pack Neulog_Accessories this pot holder secures specimensGraduated through five different hole sizes from 9 16 to 1 4 inch, this stackable plastic sieve pack progressively sorts earth science and soil study samples by particle size.