Escalators (How It Works) by Kelli Hicks

by Kelli Hicks

An escalator is a moving staircase with steps that go up or down. This book discusses how an escalator if based off a conveyor system, moving objects up and down using gears and chains that are connected to the steps, flattening them out at the top and bottom so people can easily get on. This form of transportation has made it more convenient to go from one floor to another without walking up flights of stairs. So, next time you have a chance to ride an escalator, hold on to the handrails and get a free moving staircase ride! This book will allow students to analyze data to determine if a design solution works as intended to change the speed or direction of an object with a push or a pull. - GRL F

Paperback

First published August 1, 2014

Reviews

[Cheryl · Rating 3 out of 5]

Cute book but it didn't talk about the motor at all. How does someone turn an escalator on or off? What maintenance does it require? Who takes care of it?

Missing some stuff.

[Sue · Rating 4 out of 5]

Simple and to-the-point. I would have added that you should not sit on these things because they will eat you up . . . . (bite your bottom).

[Helen · Rating 4 out of 5]

Truthfully, I have always wondered how escalators worked! So, when I needed an E object on the cover of a book, I'm glad I chose this one! The book describes conveyer belts, and shows the parts of an escalator from above and below. I still don't understand how the steps flatten at the tops and bottoms of them. Also, the book says to hold the handrail, but the first, rather-neglected child on an escalator, is holding an umbrella plus luggage, so she is not being safe! A bit of a mixed-message, there. The pictured children are sexually and ethnically diverse. The book has a Photo Glossary and an Index.