Levers

Introduces the principles of levers as simple machines, using examples from everyday life and demonstrates how levers work with simple activities and experiments. Includes notes for teachers and parents. Suggested level: primary.

שנה

1999

הוצאה

A & C Black (Childrens books)

מהדורות

1

עמודים

32

ISBN

9780713652307

מקור הנתונים: Wikidata