Free Work Bundle: Flooding, Dams, Wetlands & Salmon (Earth Science) Bring real-world water issues into your classroom with this free sample work bundle from my Watersheds, Rivers, Flooding, Dams, and Water Quality unit. This resource gives students meaningful practice while helping teachers preview how the larger SlideSpark Science unit is structured and taught. This free download works well as a stand-alone activity, a unit planning tool, or a preview of the full unit experience. What’s Includ