Το καλάθι αγορών σας είναι άδειο.
Demonstrate energy transformations or conversions with this affordable 7-piece set. Generate electrical energy from mechanical motion (hand generator), chemical energy (batteries), light (solar cell), and wind (windmill). Includes LED, motor, and buzzer to provide evidence for electrical energy. Also includes instructions and a set of leads to connect the devices in various combinations. Requires 2 AA batteries (not included).