Who Invented It and What Makes It Work?

By Sarah Leslie

Anecdotes about twenty-nine inventors and their creations with explanations of how each invention works. This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0448476126
• ISBN13: 9780448476124
• Release Date: January 1976
• Publisher: Putnam Pub Group
• Length: 67 Pages
• Weight: 1.53 lbs.
• Age Range: 6 to 12 years
• Grade Range: Grades 1 to 7