Challenge your students to build a "merry-go-round" from balloons and scavenged supplies. The balloon powers a flag around a central pole to get as many rotations as possible before the air runs out. All built from scratch, this should challenge your little scientists!
This page is a printable rubric and lesson plan to use, explaining the quiz and test grades associated with the project. Adjust as needed for your class!
Two copies per page, to save you paper, and they fit great in journals or glued into notebooks!