Middle-graders often wonder how electricity is transmitted and how we are protected from being shocked. Pegis takes these readers along on an exploration of the

This book briefly describes the functions of conductors and insulators in electricity.

What are conductors and insulators? This electricity book for kids will teach the difference and purpose of each of these. Because of the age-appropriate select

An insulator, also called a dielectric, is a material that resists the flow of electric current. An insulating material has atoms with tightly bonded valence el

This study of insulating materials examines such topics as the manufacture of tempered glass, the glass-fibre core, the polymeric housing, the physics of pollut