Light Circuits: Depending on the grade level of the students, you can have them build a very simple circuit or a very complex circuit with both series and parallel circuits combined. For my students I have them use file folders in order to design and buil
BFSU Lesson Air is Substance Weight of Air Activity - free hands-on science activity for and grade elementary kids. Part of a complete unit on Ecosystems: Ecosystems & the Food Chain. Meets Common Core and NGSS.