Books in Exploring the Continents series

"In ancient times, humans used lead in everything from cooking tools to water pipes to cosmetics. That was before scientists discovered that lead is poisonous to humans. Today lead is still useful, but we use it with more care in items that hold corrosive materials -- like car batteries that hold acid -- or to protect us from harmful radiation -- like in X-ray machines or nuclear reactors. Pb is lead's symbol, from the Latin word plumbum. This book will help students better understand the basics of chemistry as they learn what lead is and how this toxic but important metal is used in our world." -- Back cover.

"Copper was one of the first metals humans learned to work with -- and now it's an important component of electronic technology! This informative text explores the ins and outs of this versatile element. As well as wires, people use copper to make jewelry, cookware, and statues. The Statue of Liberty sports her iconic green color thanks to copper. The metal is even needed by the human body. Take a look and discover what your ancestors already knew thousands of years ago: copper is amazing!"--Back cover.

Chlorine's story includes food, war, and so much more. This book covers the mysterious discovery of chlorine and a case of mistaken identity. Readers explore how it is used to both keep people safe from disease and bacteria, while at the same time used as a weapon of mass destruction. Readers also get a peek inside the inner workings of the atom. A helpful periodic table of elements is included, as well as links to helpful websites and other books for further reading on chlorine.

This chemical element helps matches light, ensures that your body digests food correctly, and even keeps your teeth clean. As one of the first chemical elements to be discovered, phosphorus has an invisible effect on people's lives. Readers will explore the microworld of the atom and discover the chemical world of phosphorus. Included are a helpful glossary of important terms, learning tools, and suggestions to further the learning experience.