Force Table - Precision, 40Cm-Diameter, Extra Thick, Machined Aluminum Tabletop, Easy Assembly, Specially Designed So Your Pulleys Won'T Wobble, Includes A Sturdy Support Rod And Heavy Tripod Base, A Great, Quick Quantitative Demonstration Or Lab Activity
Classification of Chemicals: Elements, Compounds and Mixtures Kit, three lab activities to help understand the differences between elements, compounds and mixtures, Kit contains enough materials for 15 groups.