See if you can invent something that will lift a cooler of food into a tree and out of the reach of raccoons and bears. This activity from Zoom focuses on designing a simple machine with common household objects.
Assign directly to your students using the code or link above, without having them log in. Simply tell your students to go to
www.pbsstudents.org and enter the Assignment Code, or click on the Assignment URL to share the assignment as a link.