Science foundations

Examines the life cycles of viruses, the ways they affect their hosts, and how their ability to mutate presents a challenge to the medical community.

An exploration of light and sound that explains how they work, their functions in everyday life, and how human understanding of light and sound can answer questions about the universe.

An exploration of radioactivity that discusses its occurrence in nature; nuclear energy; nuclear weapons and terrorism; how it is used in the hospital, laboratory, supermarket, and at home; experiments; and other related topics.

An overview of natural selection that covers adaptation, Charles Darwin's work and objections to his theories, Mendel's findings about inheritance, and other related topics.

Introduces Albert Einstein's theory of relativity, describing its origins with Galileo, a seventeenth-century astronomer, featuring full-color illustrations and photographs, and discussing the scientific significance of the theory.

Explores key experiments and discoveries that have shaped the field of genetics and enabled researchers to unlock the genetic code.

Explains how matter and energy form the scientific foundation of everything on Earth, providing an overview of the different forms of energy, the variety of particles in nature, Einstein's theories of matter and energy, discoveries of dark matter and dark energy, and other related topics.

Explains how early vaccines were discovered, how scientists have used a better understanding of the immune system and antibodies to learn why vaccines work, and how knowledge leads to the development of new preventative measures; and discusses the controversies surrounding the safety of certain vaccines.

Examines the scientific foundations of the theory of evolution, an idea advanced by nineteenth-century British naturalist Charles Darwin to explain how all forms of life on Earth change and adapt to environmental opportunities.

An overview of natural selection that covers adaptation, Charles Darwin's work and objections to his theories, Mendel's findings about inheritance, and other related topics.