Lift-the-Flap Questions & Answers How Does it Work?

How things around us work, from the internet to medicine, money, and more.

This excellent addition to the ever popular Questions & Answers series lifts the flap on all kinds of gadgets, systems and ideas. It answers questions such as: How does electricity get into our walls? Why do waves go up and down? and Where does money come from?

Perfect for every inquisitive child.