
1/8: Okabena-Ocheda Watershed District Administrator Dan Livdahl (right) shows fifth graders the contents of a milkweed pod during a tour of the Prairie Wetland Learning Area Thursday morning. (Julie Buntjer / The Globe)

2/8: Fifth-graders from Worthington Middle School learned about prairie plants like sage, shown here by Okabena-Ocheda Watershed District Administrator Dan Livdahl, during a tour of the Prairie Wetland Learning Area Thursday. (Julie Buntjer / The Globe)

3/8: A butterfly rests on a cropping of purple aster at the Prairie Wetland Learning Area on the east edge of Worthington Thursday morning. (Julie Buntjer / The Globe)

4/8: Lizeth Mireles (left) and Crystal Vega Sanchez watch macro-invertebrates swim inside their jar as they try to identify them during a lesson aboard the Prairie Ecology Bus Center. (Julie Buntjer / The Globe)

5/8: Dwayne Bouakham (left) and Angel Lopez look at diagrams of macro-invertebrates to identify those swimming in their jar of water Thursday morning during a lesson aboard the Prairie Ecology Bus Center. (Julie Buntjer / The Globe)

6/8: Amarilyz Hernandez (left) and Juicy Mi look at bugs swimming in a jar of water Thursday morning during a Prairie Ecology Bus Center lesson at the Prairie Wetland Learning Area. (Julie Buntjer / The Globe)

7/8: Fifth-grade students from Worthington Middle School learned about plants, animals and water quality during a visit to the Prairie Wetland Learning Area and Prairie Ecology Bus Center Thursday morning in Worthington. Here, Okabena-Ocheda Watershed District Administrator Dan Livdahl shows students Phragmites (common weed grass). (Julie Buntjer / The Globe)

8/8: Fifth-grade students from Worthington Middle School are shown a handful of mud collected from the bottom of the pond at the Prairie Wetland Learning Area Thursday morning. (Julie Buntjer / The Globe)