Overview

Sloping Up and Down explores the benefits and uses of the ramp. RobbO and RobbEE learn that a ramp is called an inclined plane. They discover that ramps are used for building stairs and escalators, and were even used as far back as ancient Egypt to build the pyramids.


ISBN-13

9780778704195

ISBN-10

077870419X

Weight

0.80 Pounds

Dimensions

8.25 x 0.50 x 10.25 In

List Price

$27.60

Format

Hardcover

Language

English

Pages

32 pages

Publisher

Crabtree Classics

Published On

2014-02-28



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