Wind-ups

Illustrations and activities demonstrate springs and wind-up toys as sources of energy. Includes a plan for building a model with a wind-up mechanism, and notes for teachers and parents. Suggested level: primary.

שנה

1999

הוצאה

A & C Black (Childrens books)

מהדורות

1

עמודים

32

ISBN

9780713652314

מקור הנתונים: Wikidata