• Welcome {{profileName}}
  • My Dashboard
  • Log Out
  • Current Subscriptions
  • {{entitlement.name}}
  • See All Subscriptions
Cancel
  • Latest Issue
  • All Issues
  • Videos
  • More
    • Welcome {{profileName}}
    • My Dashboard
    • Log Out
    • Current Subscriptions
    • {{entitlement.name}}
    • See All Subscriptions
  • My Bookmarks
  • BIOLOGY
  • CHEMISTRY
  • EARTH SCIENCE
  • ENGINEERING
  • PHYSICS
  • COOL STEM JOBS
  • GROSS OUT
  • TEXT SETS
  • TEMPLATES
 
 

Sign in to Your Account

Haven't signed into your Scholastic account before?

Create an account

Teachers, not yet a subscriber?

Subscribe now

Subscribers receive access to the website and print magazine.

You are being redirecting to Scholastic's authentication page...

GO BACK

Sign in to Your Account

Haven't signed into your Scholastic account before?

Create an account

Teachers, not yet a subscriber?

Subscribe now

Subscribers receive access to the website and print magazine.

You are being redirecting to Scholastic's authentication page...

GO BACK
  • Free Issue
  • All Issues
  • Videos
  • All Our Magazines
  • More
  • Subscribe
  • BIOLOGY
  • CHEMISTRY
  • EARTH SCIENCE
  • ENGINEERING
  • PHYSICS
  • cool stem jobs
  • gross out
  • TEXT SETS
  • TEMPLATES

Sign in to Your Account

Haven't signed into your Scholastic account before?

Create an account

Teachers, not yet a subscriber?

Subscribe now

Subscribers receive access to the website and print magazine.

You are being redirecting to Scholastic's authentication page...

GO BACK

Sign in to Your Account

Haven't signed into your Scholastic account before?

Create an account

Teachers, not yet a subscriber?

Subscribe now

Subscribers receive access to the website and print magazine.

You are being redirecting to Scholastic's authentication page...

GO BACK
Home > September 17, 2018

Subscriber Only Resources

Try It Free

Start Your Free Trial

Access this article and hundreds more like it with a FREE TRIAL to Science World magazine. No obligation or credit card is required.

Learn More
open presentation view
September 17, 2018
Teacher's Guide & Standards
Answer Key
All Skills Sheets
Google News Quiz
  • ARTICLES
  • TEACHING RESOURCES
Help/Support
Live Chat

Contact Us

Frequently Asked Questions

Subscribe

Help/Support
Live Chat

Contact Us

Frequently Asked Questions

About Us

What You Get

Editorial Calendar

State and National Standards

Funding Guide

About Us

What You Get

Editorial Calendar

State and National Standards

Funding Guide

Subscriber Information

Curricular Topics

Subscriber Information

Curricular Topics

Connect with Us
PRIVACY POLICY Terms of Use TM ® & © 2019 Scholastic Inc. All Rights Reserved.