Guinea and Feather Apparatus, 20" Glass Tube Science at Home_Chemical Science and mechanical-advantage experiments

and mechanical-advantage experiments

letting students wire the panel directly to each load and watch how light powers different output devices

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

Three-speed manual transmission with reverse in a clear-plated case

5 mm in diameter

Guinea and Feather Apparatus, 20" Glass Tube Science at Home_Chemical Science and mechanical-advantage experimentsDrops a dense object and a feather together inside a 20 inch evacuated glass tube, showing that air resistance not mass accounts for differences in fall time under gravity.