Solar power

By Ed Catherall

Examines the characteristics of the sun and its importance in our daily lives through a variety of experiments.

Electric power

By Ed Catherall

Experiments designed to create an understanding of electric power.

Touch

By Ed Catherall

Explains the physiology of touch and how we use this sense to find out about the world in which we live. Includes simple experiments.

Hearing

By Ed Catherall

Explains the physiology of the human ear, showing how it acts as a receiver for sound, and how sound is produced through various media. Includes simple experiments.

Sight

By Ed Catherall

Explains the physiology of the human eye, showing how it is used to perceive shapes, colors, shadows and reflections. Includes simple experiments.

Clocks and time

By Ed Catherall

Defines time and examines the many ways people have devised to measure its passage. Includes a variety of experiments that help explain the different aspects of time.

Magnets

By Ed Catherall

Discusses magnets and the magnetic force, including making magnets, electromagnets, and the Earth as a magnet.

Graphs

By Ed Catherall

Offers instruction in making and using pictographs, bar graphs, circle or pie graphs, and line graphs.

Numbers

By Ed Catherall

Traces the development of Greek, Mayan, Roman and other number systems, and discusses rules for numbers, systems of measurement, and such special numbers as prime numbers, index numbers, and Fibona...

Electricity Magnetism and Astronomy Challenge Science

By Ed Catherall