The Science of Water Teacher's Guide provides a number of inquiry-based activities for grades 3-5 (although it can be expanded for other grades). The guide contains science lessons that enable students to explore water, behavior of...

Make a cantilever that can hold 5 marbles at least 12 inches away from its base structure with this engineering challenge. The site contains the challenge, a lesson plan, tips, and a place for students to document their engineering process.