Come-Back Can

In this activity, students make a Tin Can Toy with a secret mechanism, while exploring kinetic energy. When you roll a Tin Can Toy away, it comes rolling back!
Science concepts: Energy (Potential & Kinetic), Engineering, Forces and Motion,
Grade Level: Grades 4,5,6
Level of Engagement: Hands-on
Resources Required: Coffee tin (or plastic container), Drill or punch device, 2 elastic bands, Paperclip, Tape, Cotton thread or string, Small weight (e.g. washer)
Possible extensions: Please see the Come-Back Can activity in Science World’s website.