The 4th graders had an enjoyable morning at Discovery World in downtown Milwaukee on Wed. Nov. 3rd. They had a "Behind-the-Scenes" tour where they got a chance to see the aquariums from the other side, and learn how Discovery World manages to care for so many fish. They also had a chance to go aboard the "Challenge", a replica of a Great Lakes schooner and see how sailors lived and worked aboard ship. The students also saw and explored a much larger model of the Great Lakes. They finished their visit with a lab in which they learned about the water cycle, ground water, and aquifers.