In the Land of 10,000 Lakes, clean water is a central part of the culture of Minnesota! What IS clean water though? Scientists measure all sorts of things about water to figure out whether an aquatic system is healthy or not. Macroinvertebrates (small critters that live in the water) and plants can tell us about the health of a system! In this series of videos, you will sample for macroinvertebrates, from selecting a collection location and scooping for macros, to sorting and identifying what you find using a dichotomous key.
Four different implementation plans with student worksheets help teachers focus exploration on one of several grade-level standards. If classrooms are not able to collect macros on their own, teachers are encouraged to do a basic collection and then allow students to sort them. Get the teacher guide, implementation plans, ID resources and microscope photos, dichotomous keys and more.
Produced by Cedar Creek Ecosystem Science Reserve, University of Minnesota.