Hardcover
(A & C Black (Publishers) Ltd, June 23, 1988)
An introduction for young children to the materials which we use to wrap presents, keep food fresh and carry heavy loads. Simple experiments include how to make recycled paper and finding out why a polystyrene cup keeps coffee hot. This book is one of a series which aims to encourage young children to look closely at their surroundings, ask questions about their discoveries and try simple experiments to find out how and why things happen.
Discusses the different aspects of time and how it is measured, including days and nights, years, calendars, and clocks. Provides suggestions for related activities.