Extensive collection of experiments illustrating fundamental principles of physics. Demonstrations on this disc: Voltage Drops and I2R Losses - voltage drop along wire, sum of IR drops, internal resistance of batteries, loading by a voltmeter, voltage drops in house wires, I2R losses, hot dog frying; Non-Ohmic Resistance - neon bulb resistivity, carbon and tungsten lamps, diode, rectifier circuit, transistor amplifier; Electrochemical Effects - conductivity of solutions, battery effect, pickle frying, electrolysis, electroplating; Capacitance and RC Circuits - Leyden jars on Toepler Holtz, parallel plate capacitor, parllel plate capacitor dielectrics, rotary capacitor, battery and separable capacitor, exploding capacitor, force on a dielectric, dissectible capacitor, grounded Leyd en jar, series / parallel capacitors, RC charging curve, relaxation oscillator. Kit contains: DVD with English and Spanish audio tracks and subtitles, and bilingual study guide.