HS-ESS2-4
Use a model to describe how variations in the flow of energy into and out of Earth’s systems result in changes in climate.
Clarification statement: Examples of the causes of climate change differ by timescale, over 1-10 years: large volcanic eruption, ocean circulation; 10-100s of years: changes in human activity, ocean circulation, solar output; 10-100s of thousands of years: changes to Earth's orbit and the orientation of its axis; and 10-100s of millions of years: long-term changes in atmospheric composition and plate tectonic movement.
Assessment boundary: Assessment of the results of changes in climate is limited to changes in surface temperatures, precipitation patterns, glacial ice volumes, sea levels, and biosphere distribution.
Resources
Examples and discussion of resources for the learning, teaching, and assessment of HS-ESS2-4.
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Assessment
What assessment of HS-ESS2-4 might look like on a NY state exam.
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NGSS Dimensions
Performance expectation HS-ESS2-4 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
- Developing and using models: Use a model to provide mechanistic accounts of phenomena.
- Scientific knowledge is based on empirical evidence: Science arguments are strengthened by multiple lines of evidence supporting a single explanation.
- Earth and the solar system: Cyclical changes in the shape of Earth’s orbit around the sun, together with changes in the tilt of the planet’s axis of rotation, both occurring over hundreds of thousands of years, have altered the intensity and distribution of sunlight falling on the earth. These phenomena cause a cycle of ice ages and other gradual climate changes.
- Earth materials and systems: The geological record shows that changes to global and regional climate can be caused by interactions among changes in the sun’s energy output or Earth’s orbit, tectonic events, ocean circulation, volcanic activity, glaciers, vegetation, and human activities. These changes can occur on a variety of time scales from sudden (e.g., volcanic ash clouds) to intermediate (ice ages) to very long-term tectonic cycles.
- Weather and climate: The foundation for Earth’s global climate systems is the electromagnetic radiation from the sun, as well as its reflection, absorption, storage, and redistribution among the atmosphere, ocean, and land systems, and this energy’s re-radiation into space.
- Weather and climate: Changes in the atmosphere due to human activity have increased carbon dioxide concentrations and thus affect climate.
- Cause and effect: Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects.