In this activity, a metal "rod" can be made to roll back to you automatically when pushed away. What's at work behind the phenomenon?
Not only will this activity encourage critical thinking as your child tries to figure out what happened, but it will also serve to reinforce the physics concept of stored energy!
What You Need:
- Large metal coffee can with a lid that clips into the top
- Electric drill
- Long elastic rubber band
- Small weight
- Clear plastic cylinder (optional)