Aquatic Habitats

      As part of our river study, students create freshwater mini-habitats. Although these are static environments unlike the lotic environment of the river, the aquatic habitats allow for up-close observation and study of freshwater plants and animals. Students begin by putting in the gravel, water, Elodea, algae, worms, snails and guppies. Then, they closely observe and draw the "initial state." Through these scientific drawings, students notice the characteristics of the organisms and generate many questions about what they're observing. These questions then guide them to research the information and find answers. This study leads students to learn about ecosystems, interdependence, food chains, and what is meant by "balance" in a habitat.


A typical tank


Partners in discovery


Detailed drawings of tanks


Careful observations

What can we learn through drawing?

Back to River Study

Return to Third Grade page