Your students become magnetic detectives with this hands-on building kit. -- The kit includes all materials needed to build two reed switch controlled magnetic sensors: one that lights and one that buzzes. After assembling the sensors, students use them to detect magnetic fields around magnets, solenoids, coils and other common items. -- These activities, developed by Joe Gilbert, reinforce understanding of magnetism as well as technical skills including following directions, reading schematics, understanding simple electronics and circuitry, problem solving and report writing. -- Includes: 2 circuit boards, 2 220-ohm resistors and 2 reed switches, plus piezoelectric buzzer, LED, Velcro square and instructions. Requires 9-V batteries, magnets and magnetic devices, not included. |
