Gray, Leon

"From using horses in battle to operating hospitals in a war zone, biology has been an important part of warfare. Readers will learn about the scientists and concepts that contributed to modern understanding of biology."--Provided by publisher.

Discusses the pros and cons of Global Positioning System, or GPS, and the ethics behind it.

Questions the moral and ethical aspects of genetic modification and examines the pros and cons of each argument.

Questions the moral and ethical aspects of genetic modification and examines the pros and cons of each argument.

Describes what electricity is and how it works.

A guide to using and understanding wikis.

Discusses the blog and the many ways it can be used.

Explores how plants are classified using the scientific method that groups things by the way they look and live.

An introduction to practicing smart personal habits that focuses on puberty and provides information and advice on growth spurts, body hair, acne, family matters, diet, and other related topics.