"An overview of asthma for children in grades 5 and up. Find out what asthma is, what causes it, how it is diagnosed, and some treatment options"--Provided by publisher.
Explains the structure of the eye, how vision works, and how glasses and contact lenses correct vision problems. Also discusses exercises to improve vision and types of conditions that require corrective surgery.
Provides an overview of the fundamental principles of energy and includes well-formed examples, information on how living creatures are affected by energy, and details about research on the topic.
Explains the structure and function of DNA, including how heredity works, how scientists read code, and the treatment of diseases caused by genetic errors, and discusses relevant scientific research.
