6.MS-ESS1-1a

Develop and use a model of the Earth-sun-moon system to explain the causes of lunar phases and eclipses of the sun and moon.

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Standards citation: NGSS Lead States. 2013. Next Generation Science Standards: For States, By States. Washington, DC: The National Academies Press. Neither WestEd nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of this product, and do not endorse it.