kit, properties of materials, allows students to make a wide range of investigations with only a small number of items, kit contains two sets of three metal cylinders - aluminum, copper, and steel. In one set the cylinders all have equal masses
Mystery Density Activity Set with wooden holder, which allows for efficient storage and easy access, Set of 12 bars of different length but the same diameter
Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.