![]() Recognize and represent proportional relationships between quantities. Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities. Integrate multimedia and visual displays into presentations to clarify information, strengthen claims and evidence, and add interest. Science assumes that objects and events in natural systems occur in consistent patterns that are understandable through measurement and observation.Ĭonnections to other DCIs in this grade-band:ģ.PS2.A 5.PS2.B 5.ESS1.B HS.PS2.A HS.PS2.B HS.ESS1.B.Scientific Knowledge Assumes an Order and Consistency in Natural Systems Patterns can be used to identify cause-and-effect relationships.The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year. Earth’s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. This model of the solar system can explain eclipses of the sun and the moon.Patterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models. ![]() Develop and use a model to describe phenomena.His main job is recruiting union members and helping out new employees. Modeling in 6–8 builds on K–5 experiences and progresses to developing, using, and revising models to describe, test, and predict more abstract phenomena and design systems. Sun Moon is a businessman, entrepreneur, and leader of the Los Santos Tow Union. The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education: Students who demonstrate understanding can:ĭevelop and use a model of the Earth-sun-moon system to describe the cyclic patterns of lunar phases, eclipses of the sun and moon, and seasons. ![]()
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