Science activities

Simple experiments illustrate basic principles of sound.

Helps readers discover how the weather works. Suggests hands-on activities and experiments.

Discusses the scientific principles behind heat with a collection of experiments.

Discover how the world underground works through science projects.

Examines why day turns to night and seasons constantly change, why it is hot in summer and cold in winter, and observes the planets.

Presents experiments examining the properties of a variety of materials, from wood and fabrics to plastics and gases.