Search Results
Showing results 1 to 3 of 3
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-127.png?itok=MvN33yno)
Make a Speaker: A Coil, a Magnet, and Thou
Source Institutions
Make your own simple speaker so you can listen to your favorite radio station. Just wind a coil, attach it to a piece of cardboard or Styrofoam, hold a magnet nearby, and listen.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-000.gif?itok=cVNf8Wj4)
Sound Representation: Modems Unplugged
Source Institutions
In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-606.jpg?itok=ilzE03rH)
Making Circuits
Source Institutions
In this activity, learners explore electricity and conductivity to find that many things conduct electricity including copper, pencil lead, fruit, play-doh, and even people!