air

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.

Text and illustrations explore fog, mist, and haze, and discuss how each is formed.

A short scientific explanation of air, examining such phenomena as wind and atmospheric pressure.

A young boy who loves the countryside determines to find the source of the black cloud that hovers above it.

"Photographs of beautiful children around the world exploring air through touch, smell, sound, and sight underscore the importance of clean air to all life on earth. This is science that surrounds us"--Amazon.com.