The abbreviation NGSS stands for Next Generation Science Standards. MS-ESS2-1 is a specific standard within the NGSS framework. This standard, MS-ESS2-1, is focused on middle school earth and space science and is titled "Earth’s Systems." It states that students should be able to "develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process." This standard emphasizes the interconnectedness of Earth's materials and energy flow within Earth's systems. Students are expected to analyze and understand how materials are recycled and energy is transferred within Earth's atmosphere, geosphere, hydrosphere, and biosphere.
