Marvelous Marshes of the Chesapeake
Third graders identify sources of salt water and fresh water that enter the Chesapeake Bay. They build a model watershed and describe how runoff enters the Bay.
3rd Science 3 Views 1 Download
What is Groundwater? Our Underground Water Supply
Learn about the consequences of groundwater with a lesson about the different ways California handles water conservation and pollution. After reading a passage about the water table, learners apply what they have read to six...
2nd - 4th Science CCSS: Adaptable