Ballard, Carol

Presents an examination of the three states of matter, including solid, liquid, and gas, explaining what they are, what they are made of, and how they move and change, and includes a selection of related science experiments or demonstrations.

Discusses the causes of major infectious diseases, such as HIV, malaria, SARS, and meningitis, covering how they spread, treatment options, and what governments and health organizations can do to prevent epidemics and pandemics.

Discusses the importance of making healthy food choices, looks at the role of food choice in weight control and in handling medical conditions, explains what allergies are, and includes a selection of special recipes.

Discusses the importance of making healthy food choices, exploring the reasons why people eat, looking at what is in food, explaining food labels, and including recipes and a one-week menu.

Presents an introduction to muscles, explaining what they are, how they work, and their function in the human body; looks at some of the illnesses and injuries that can affect the muscles; and offers advice on how to keep muscles healthy.

Presents an introduction to the lungs, explaining what they are, how they work, and their function in the human body; looks at some of the illnesses and injuries that can affect the lungs; and offers advice on how to keep them healthy.

Presents an introduction to immune system, explaining what it is, how it works, and its function in the human body; looks at some of the illnesses and injuries that can affect the immune system; and offers advice on how to keep the immune system healthy.

Presents an introduction to the heart and blood, explaining what they are, how they work, and their function in the human body; looks at some of the illnesses and injuries thatcan affect the heart and blood; and offers advice on how to keep them healthy.

Presents an introduction to the eyes, explaining what they are, how they work, and their function in the human body; looks at some of the illnesses and injuries that can affect eyes; and offers advice on how to keep the eyes healthy.

Presents an introduction to the ears, explaining what they are, how they work, and their function in the human body; looks at some of the illnesses and injuries that can affect ears; and offers advice on how to keep the ears healthy.