"Explains how to use the scientific method to conduct several science experiments about ecosystems. Includes ideas for science fair projects"--Provided by publisher.
Presents new, tested experiments related to the intriguing field of genetics. The experiments are designed to promote interest in science in and out of the classroom, and to improve critical-thinking skills.
Discusses the organs and fuction of the human digestive system, nutrients essential for good health and how they are processed by the body, and medical treatments of digestive disorders.