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About this resource:


Authority Status: 
Original Statement
Indexing Status: 
Yes
Education Level: 
6, 7, 8
Subject: 
Science
Statement Notation: 
MS-ESS1-2
Statement Label en-US:  Performance Expectation
Description en-US:  Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
Comment en-US:  Clarification Statement: Emphasis for the model is on gravity as the force that holds together the solar system and Milky Way galaxy and controls orbital motions within them. Examples of models can be physical (such as the analogy of distance along a football field or computer visualizations of elliptical orbits) or conceptual (such as mathematical proportions relative to the size of familiar objects such as students' school or state).
Comment en-US:  Assessment Boundary: Assessment does not include Kepler’s Laws of orbital motion or the apparent retrograde motion of the planets as viewed from Earth.
Language: 
English

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