Describes how electronic devices work, and how to use LEDs, batteries, and other parts to make your own devices. Includes electronics projects and further information suitable for young readers.
General Note
Includes glossary.
Content Note
Be a maker! -- Then and now -- How do sensors work? -- How do LEDs work? -- Join a club! -- Make an LED throwie! -- Getting started with sensors -- Motion-sensing alarm -- Even more projects -- Keep experimenting -- More about making.