There are more bacteria in your intestines than there are people on Earth. From dentists to insects to bacteria, this series tackles some of life's more unpleasant experiences - and explores how much worse it might be if they didn't exist. Each title is a blend of history and science, explaining how things work and revealing how humans have come to terms with all the challenges that nature has thrown at us! Key Features: 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.
