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Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.

Performance Expectation

Grade:  Middle School (6-8)
Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.

Performance Expectation

Grade:  Middle School (6-8)
Develop and use a model to describe how unequal heating and rotation of the Earth cause patterns of atmospheric and oceanic circulation that determine regional climates.

Performance Expectation

Grade:  Middle School (6-8)