Gardner, Robert

Commemorates the annual anniversary of Earth Day and suggests activities and experiments for learning more about the Earth and how to improve its condition.

Presents more than twenty-five experiments and science project ideas on genetics and evolution, covering the classification of objects; Charles Darwin and the theory of evolution; adaptations, time lines, and missing links; Gregor Mendel, genetics, and the role of probability in heredity; and genes, chromosomes, and DNA models.

Contains a collection of chemistry science fair projects using acids, bases, metals, salts, and inorganic materials.

Explains how visual perceptions are processed and suggests how illusions can be produced with images and graphics.

Instructions for chemical experiments that can be done using the stove, refrigerator, counter, sink, and materials commonly found in the kitchen.

Discusses energy and its conservation and provides experiments with which to investigate the topic.

Discusses the problem of diminishing energy sources and ways of conserving energy and eliminating its waste in home, in school, and in driving.

Contains ideas for science experiments relating to space, gravity, and the planets.

Provides descriptions and instructions for science experiments that can be conducted at the kitchen counter, stove, sink, or refrigerator, exploring liquids, ice, air pressure, fire, and other topics; and includes safety tips.

Explore the many different aspects of time with over fifty projects and investigations.