Changing Planet: The Warming of Our Large Lakes - Reasons for Concern

Another A+ lesson on the impact of climate change comes to you from the National Earth Science Teachers Association. In this installment, learners model the stratification of water in lakes due to temperature differences. The lab also provides a visual display of what happens to the profile as lake water warms up. Follow the activity with a discussion of how the mixing of water depletes oxygen available to the organisms living in the lake. This resource really drives home how global warming can affect freshwater ecosystems.

Concepts

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freshwater, lakes, the great lakes

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Additional Tags

fresh water, the great lakes, fish population, hypolimnion, lake, lake ecosystem, thermal stratification, lake layers, water layer, water stratification, temperature profile, science

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Resource Details

Grade

7th - 10th

Subjects

Science

4 more...

Resource Type

Lesson Plans

Audience

For Teacher Use

Duration

2 hrs

Instructional Strategies

Modeling

1 more...

Technology

Scientific Equipment

Video

Usage Permissions

Creative Commons

BY-NC-SA: 3.0