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
Propterites of matter: what oobleck, Th kit has been designed to introduce young students (K-4) to the concepts of matter in a fun, safe, hands-on way, Kit includes: 1000g Oobleck powder, 10 pcs Solid samples, 30 Holding trays, 10 Testing spatulas