Participants consider how a simple machine, a lever, turns a small push or pull (a small force) into a larger — or stronger — push or pull (a larger force) — and apply the concept to designing a model seesaw.
Provides extensive background information, facilitation outline, materials shopping list, extended supporting media suggestions, correlations to national standards, and more.
Provides classroom connections, key concepts, connections to science standards, and additional resources.
Playful Building Presentation
How Does a Pulley Work?
Simple Kitchen Levers
Simple Machines with Sid the Science Kid
CHALLENGE: Simple Machines
Our World: Science in the Circus
|Originating Source||Lunar and Planetary Institute and National Center for Interactive Learning|
[Suggest a book]
How do you lift a lion? by Robert E Wells
On the seesaw bridge by Yūichi Kimura
Hop! plop! by Corey Rosen Schwartz, Tali Klein and Olivier Dunrea