Books published by Crabtree Publishing Co,US

"Human activity often leaves a trail of harmful carbon behind that directly impacts our planet. This informative book describes how every individual produces a "carbon footprint" by using energy made by burning fossil fuels and by creating waste from packaging that gets thrown away. Find out how to measure your own carbon footprint and see what effect you are having on Earth. Learn about new developments being made to reduce the amount of carbon we create and what steps you can take to make your own "footprint" smaller."--

This engaging book explains how scientists use models to help them understand systems in the natural world. Readers learn about different kinds of models and discover the similarities and differences between models and the real objects and processes they represent.

"This informative book goes to great lengths to explain how scientists around the world use the metric system and related tools to help them compare, contrast, and analyze the measurement data they collect. Opportunities for hands-on learning make the content meaningful to readers as they refine their measuring skills."--

Shows that cyber bullying is on the rise. Cyber bullying involves using technology, like the Internet or cell phones, to bully or harass another person. This book offers a look at cyber bullying and explains how it is different from other forms of bullying.