Modeling the Greenhouse Effect
Learners simulate the greenhouse effect and draw a model of what he/she thinks is happening. They draw inferences from the model and from other resources to determine possible outcomes of increased earth temperatures.
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Current Sources of Energy to Maintain a Sustainable Future
In small groups, fourth graders identify different sources of renewable and non-renewable energy. They research the pros and cons of using each of these resources. They rank household appliances according to energy usage and efficiency....