The stories within it are about much-loved Biff, Chip and Kipper, their friends and family, and the exciting adventures they have together. They are carefully graded across 9 stages and contain built-in progression and vocabulary repetition throughout. Each book includes notes for parents/carers and teaching assistants on the inside covers.
Provides information on light, sound, and electricity, describes how various electrical and electronic devices work, and recommends related Web sites.