How would you know what time it was without clocks? How would you buy things without money? It's hard to imagine what life would be like today without the inventions and discoveries that we take for granted, from the humble bar of soap to the fantastic complexity of the Internet. Combining history with science, this series explains how these products of human ingenuity have transformed our world. Full-color cartoon-style illustrations that make the books fun and attractive to reluctant readers A simple timeline providing an easily understood history of the subject Top Tips offer helpful advice on what you should or shouldn't do in a tricky situation How It Works callouts explain the science behind the technology You Can Do It! callouts describe a simple, safe experiment, or an action you can take to help make the world a better place A helpful glossary and index in each book.
