Curated OER
Changing Planet: The Warming of Our Large Lakes - Reasons for Concern
Another A+ instructional activity 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....
Curated OER
Can We Keep the Lake Clean?
Learners are introduced to the water cycle. They help draw a picture of a lake ecosystem, adding human impacts that affect water quality. Students help fill in the components of a drawing of a water system. At the end of the lesson...
Curated OER
Teaching about Aquatic Respiration
Students explore respiration in a lake ecosystem by experiment and research.