US$ 153.87
Drilled 3/4-inch steel ball with an approximately 2
and string for harmonic demonstrations on a magnetic base
Simple Bunsen burner with ASR-standard gas connections supports straightforward flame heating in chemistry and biology laboratory curricula
a 45mm hollow equilateral acrylic prism holds varied liquids for refraction-index-by-medium investigations
ambulacral grooves
Environmental Chemistry Nitrates, Phosphates and Eutrophication Kit for 15 Groups Subject_Microbiology Drilled 3/4-inch steel ball withNitrates and phosphates kit explores environmental chemistry through eutrophication testing, water pollution analysis, and ecosystem impact assessment.
US$ 153.87
US$ 11.99
US$ 38.00
US$ 102.31
US$ 17.99