An introduction to the characteristics and habitat of the condor.

Readers will follow the mail as it goes through the post office and processing plant, where it's prepared for the rest of its journey. The informative text and accompanying photographs in this book bring readers along for the incredible trip. A concluding diagram helps readers summarize what they've read using fun and colorful images.

An unexpected burp at the dinner table can be embarrassing-although some people love to burp loud and proud! Whatever the case, everyone burps, and this scientific guide explains how and why. The text is paired with illustrative diagrams and colorful photographs to help readers grasp potentially complex topics.

In this volume, readers learn the different reasons why we cry--whether it's dirt in the air or a really strong emotion. They also learn about the parts of the body that make crying possible.

Sweating sure is gross, but everyone does it. It's a good thing too, because it's our body's way of cooling us down. Readers will discover the reasons why we sweat, and how the body works to produce it.

Explains sweat and bacteria and why these things make people stinky--

Peanut allergies can be very serious. They're the most common food allergy to cause anaphylaxis in children. There is a blood test and a skin prick test to confirm a peanut allergy, but no cure. The only way to avoid a reaction is to stay away from peanuts altogether. Readers learn the potential severity of peanut allergies and the symptoms one might experience. Full-color images alert them to food packaging labels and the possibility of peanuts on...