footer-menu

Academic Institutions

K-12

Public Libraries

Government and Special Libraries

Statewide Programs

Institutions

Databases

Primary Sources

Digital Humanities Tools

eLearning

Schools/K-12 Curriculum

Books

Large Print Books by Thorndike Press

Products

Find Your Rep

Product Support

Technical Support

Customer Support

Admin Tools

Accessibility Policy

Support

About Us

Blogs

Press Center

Events

News

Careers

Partnerships

Contact Us

Our Company

products

Marketing materials, training documents, discovery services

cengage:card

FIND YOUR SALES REPRESENTATIVE

cengage:column

Get marketing materials, training documents, discovery services.

PRODUCT SUPPORT

CUSTOMER SUPPORT

Report technical issues, errors, check system status

TECHNICAL SUPPORT

Manage product preferences, generate usage reports, simplify administrative tasks.

ADMIN TOOLS

support

footer-social-menu

Sign Up for Emails

CONNECT WITH GALE

Stay up-to-date with the latest Gale news, exclusive offers, and more.

facebook

linkedin

instagram

youtube

SOCIAL ICONS

zone1

secondary-primary-menu

cengage:galethorndikeseo

%1 products have been added to your cart but %2 have been backordered and will be fulfilled when stock is available

Product on backorder

Current quantity limit is [maxProductQuantity], please, navigate to the cart page and change quantity of product

You will be able to resubmit promo in ${countdown} seconds. test

Please note that the taxes displayed on our website are estimated and subject to adjustment. The actual tax charges will be determined and settled during the final invoicing of your order

product-detail-component

footer-legal-menu

Terms of use

Privacy

mega-menu

Browse by Institution Type

Browse by Product Type

header-component

footer

secondary-account-menu

Profile

Orders

Wish List

Fast Order Entry

My Account

single-column

secondary-storefront-menu

International

North America

China

Japan

Latin America

Brazil

Region

Set your region:

Would you like to go to the Gale {{RECOMMENDED_COUNTRY}} site instead?

It looks like you're visiting from {{DETECTED_COUNTRY}}.

main

Request a Trial

gale-footer

config

zone2

zone3

FIND YOUR REP

support-order-2

footer-legal-menu-component

footer-social-menu-component

header

footer-menu-component

You may already have access to Gale content through your institution.

STUDENTS AND RESEARCHERS

support-order-1

container

Account Information

bundle-connector

Engineering

Mathematics & Science

Mechanical Engineering

Gt Product Group

Binding Format

Marketing Imprint Name

B2B GT

CL Carton Count

Imprint Name

B2B & B2C

<P>Have you ever wondered how seesaws go up and down or how screws stay secure in walls? In the How Do series, readers are welcome to guess and then explore the science behind the right answers. Beginning concepts of mechanical engineering including levers, wedges, inclined planes, and more are learned through diagrams, photos, and informative and engaging text.</P>

How Do Seesaws Go Up and Down?.css-1p8rvzy{position:absolute;padding-left:8px;}

How Do Seesaws Go Up and Down?