Vending Machines

Vending Machines

by Tracy Abell


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Product Details

ISBN-13: 9781635173048
Publisher: North Star Editions
Publication date: 08/01/2017
Pages: 32
Product dimensions: 6.60(w) x 8.80(h) x 0.20(d)
Age Range: 8 - 11 Years

Table of Contents

Chapter 1 From Temples to Snacks 5

Chapter 2 Codes, Cogs, and Coils 11

Chapter 3 Ways to Pay 17

How it Works: Bill Validator 22

Chapter 4 Making Better Machines 25

Focus on Vending Machines 30

Glossary 31

To Learn More 32

Index 32

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