US$ 39.95
Proves horizontal velocity does not affect vertical fall time through a push-button launcher that simultaneously projects one steel ball and releases another
step-up/step-down ratios
this three-dimensional Paramecium sectional model reveals internal structure and ciliate organization for microbiology teaching
Hand-cranked pulley steps up to a smaller dynamo pulley through a rubber belt
and gray links in a 4-compartment storage case
Low Form Griffin Beaker with Spout, 250mL, White Graduations, Borosilicate 3.3 Glass Item Type_Dissection Pins Proves horizontal velocity does not250mL low form Griffin beaker in borosilicate 3. 3 glass features a spout and white graduations for general chemistry and laboratory measurement.
US$ 39.95
US$ 42.00
US$ 15.00