In this 14-day Science Unit for Grades 4 and 5, we start with an environmental problem, protection of Earth’s aquifers, and use the example of the Pinelands Ecosystem, looking at seven key ecological concepts, to discover possible solutions.All things are connected. Without a doubt, what humans do to one part of an ecosystem will ultimately affect another.Understanding these 7 ecological concepts is critical to conceptualizing the big picture of ecological success. Without this understanding, ha