Physics in action

Explains the basics of electromagnetism, describing electricity and magnetism and how they interact.

Introduces students to the planets, stars, and galaxies, answering basic questions about the universe.

Describes the science of forces and motion, discussing equations related to motion; providing diagrams; and covering speed, acceleration, vectors, Newton's first law, air pressure, and other topics.

Color photographs and illustrations explore the many forms of energy including kinetic, potential, electrical, chemical, thermal, and nuclear.