Curated OER
Does the Introduction of Pesticides and Fertilizers Alter an Aquatic Ecosystem?
Students conduct an experiment using a small sample from a local water source. They introduce fertilizers and pesticides, separately, and carefully examine the results in their simulated aquatic ecosystem.
Curated OER
Aquatic Investigations
Fifth graders investigate pond organisms, plant life, water temperatures, and changes that occur during the four seasons. They design scavenger hunts with the information collected about pond life. They read about the geology of the...