Can Nutrients in Water Cause Harm?
- Visit a nearby stream, marsh, pond, or ditch with standing water. and have students collect small samples of water. Students should observe their water samples in class using hand lenses or low-power microscopes and compare these samples to those in the containers used for the activity.
- Keep one or more classroom cultures of pond water alive for an extended period by adding a simple aquarium pump and plastic tubing to aerate the water.
- Have student groups set up their own cultures and investigate the effects of one or both kinds of fertilizers on their systems.
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Funded by the following grant(s)
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698
Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education