The Wind unit! Tornado in a Bottle - Science for the kids We discovered that the dish soap made the water too cloudy. we used straight tap water with glitter to accentuate the vortex. Awesome experiment for the kids!
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.