How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how nitrogen cycles throughout an ecosystem. 

Concepts

the nitrogen cycle, phosphorus, ecology, precipitation, fertilizers

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Additional Tags

science

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Instructional Ideas

• Have your class research the effect of the nitrogen cycle on local precipitation and general precipitation

Classroom Considerations

• Ensure proper care when handling liquids and chemicals in this experiment due to toxicity
• Be careful with algae residue to avoid illness
• The final installment in a 9-part series

• This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information

Pros

• Promotes the ability to use chemicals and scientific materials to perform experiments, thus fostering additional student engagement
• Learners can relate the information to their local environment

Cons

• Document permissions do not allow for printing