Why do lights blink? How does a speaker make noise? In Electronics for Kids, you'll discover the magic of electricity through hands-on projects designed to safely teach the basics while having fun and building cool gadgets. Ward off intruders with an alarm that buzzes when someone opens your bedroom door, create a secret message machine to communicate with friends, and build your own playable musical instrument with funky digital sounds - all while learning the ins and outs of batteries, breadboards, and more! Throughout your electronics journey, you'll: Explore how resistance, voltage, and current work, Solder components to a circuit board to create permanent projects, Use transistors to create 'smart' devices that react to touch, Turn 1s and 0s into words and images, Build circuits that help you decide things, like a coin flipper that randomly picks heads or tails. This second edition is revised and updated to focus on building a strong foundation of electronics, with more accessible language, less convoluted theory, and a focus on inexpensive, readily available components and tools. Full-color illustrations, diagrams, and new high quality photographs provide helpful context and keep readers engaged. Ready to have the incredible world of electronics at your fingertips? After reading Electronics for Kids, you will be!