Racing Rings consists of three rods one each of copper, aluminum and PVC, Ring magnet is dropped down the PVC rod, it falls unobstructed, Two metal rods create an induced magnetic field to that adds resistance to the rings travel, metals are different, they fall at different rates
Specific Heat Demonstration Set, Unique way to illustrate the different heat capacities of various metals features a slanted panel with four grooves to hold metals, Includes four metals cylinders: Aluminum, Copper, Lead and Tin; support stand, two pieces of bee wax
Photosynthesis, The Hill Reaction, Includes: 40 mL 10% Propylene Glycol Solution, 500 mL Plant Extract Buffer, 100 mL 0.05% Dichloroindophenol Ezprep, 100 mL 0.5 M Sucrose Ezprep, 0.25 g Sodium Hydrosulfite, 2 Filters, 30 Graduated Pipettes
Torsion of Metal Rods Apparatus, Searles, Horizontal pattern, having heavy metal pulley, two heavy metal brackets and two graduated scales are mounted on the connecting rod & two pointer can be clamped on the test rod with one brass & one steel test rod