Curated OER
Junkyard Wars: Air Movers
Students study Rube Goldberg machines. In this investigative lesson plan students design and build a machine that uses several steps to move an aluminum can.
K5 Learning
Why Does the Ocean have Waves?
Six short answer questions challenge scholars to show what they know after reading an informational text that examines waves—what they are, what causes them, and how different Earth factors affect their size and strength.