Action science

Includes projects for constructing simple measuring instruments, instructions on the use of metric units, and activities for making measurements.

Suggests experiments to illustrate some basic chemistry principles.

Introduces the principles of force and energy and includes a variety of simple experiments.

Explains the characteristics and transmission of sound, musical and otherwise, and suggests related activities.

Explains the basic principles of magnetism and suggest a variety of experiments which use magnets.

Presents activities which demonstrate characteristics and qualities of heat and cold.

Experiments present basic principles of light.

Discusses activities that permit observation of wild birds, such as setting up a bird feeder, making casts of bird footprints, and collecting hatched eggs.

Identifies many types of trees and describes how they grow and the kinds of leaves, fruites, and seeds they produce. Includes suggested experiments and projects.

Presents experiments with water which demonstrates its properties.