This very simple experiment which uses a magnetic chain reaction to launch a steel ball at a target at high speed. The kit is very simple to build, going together in minutes, and is very simple to understand and explain, and yet fascinating to watch and to use.
|(Qty: 3) 12'' Rulers (Green, Red or Yellow)|
|(Qty: 12) Steel Ball Bearings|
|(Qty: 4) Neodymium Magnets|