air

Learn the story behind earth day and understand the importance of establishing a healthful environment on the land, in the air, and in the waters of our planet.

As our world becomes more industrialized, with new developing countries, expanding factories, and a growing global population, changes are happening to the air we breathe. In fact, those changes have been taking place over the course of many decades. This book offers an in-depth study of the history of the problem, featuring fast facts on air pollution and solutions for how we might make our air cleaner, healthier, and more breathable for the future.

Text and pictures introduce young readers to the science of air.

"By doing the simple science projects in this book, young scientists will discover if air has weight, if one can make a cloud, and the reason the sky is blue. The experiments use materials found at home or at school. Young scientists can take what they've learned from these experiments and use suggestions to create their own unique science fair projects. Detailed explanations explain the science used in each experiment"--Provided by publisher.

Nitrogen, oxygen, argon, and carbon dioxide are all gases in Earth's atmosphere. But what happens when there is too much or two little of a certain gas? Readers will learn how every day activities such as driving, heating buildings, and using aerosols release harmful gases into the air and how it affects the air we breathe. Meets Next Generation Science Standards.

Invisible microbes cause sickness by invading our bodies and multiplying. But doctors didn't always know that sickness was caused by germs. Most people thought diseases came from smelly, damp air. But over time, those ideas changed. A Dutch scientist saw bacteria through his microscope. Doctors realized that when they washed their hands, fewer people died. And a doctor in London recognized that disease could spread through contaminated water. Because of these discoveries, people eventually learned that hygiene was the key to stopping disease. Hospitals used clean surgical instruments, and cities developed trash removal and sewage systems. Learn more about the discovery and defeat of bacteria!.

Killer Smog: London, England traces the devastating story of air pollution that took thousands of lives and brought London to a standstill.

Examines the importance of clean air to all living things and provides practical ways young readers can protect this valuable resource.

Scientist and nature writer Bill Streever looks at the science and history of wind.

Explores human history through the air we breath, discussing the molecular makeup of air to reveal how air helped shape our world and continues to shape everything we do.