Want better video quality? Sign in to access HD streaming!


Want to watch better-quality PBS Video? Sign in to access HD streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy


Simple Machines

  • Aired: 01/21/2014
  • 28:47
  • Rating: TV-G
Simple machines include the lever, the inclined plane, the wedge, the pulley, the wheel and axle, and the screw. Combine these and you can create almost anything to make work easier. In this Science Trek, host Joan Cartan-Hansen and her guest scientists John Gardner and Kathryn Devine answer students’ questions about simple machines. Woody Sobey of the Discovery Center of Boise joins in.
Embed Options
Close ×
Simple Machines
Simple Machines
Find out how simple machines makes work easier on this Science Trek.
Please copy this text to your clipboard.
Problems Playing Video ?
Major funding provided by the Laura Moore Cunningham Foundation
PBS Anywhere - funder area
Related Links:


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Masterpiece Collection

Own it now! Victoria, Poldark, Downton Abbey on DVD & Blu-ray. Visit ShopPBS.


New Hampshire PBS helps all of us explore new worlds and ideas. Give Now