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PreK-ESS2-1(MA). Raise questions and engage in discussions about how different types of local environments (including water) provide homes for different kinds of living things.

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ESS2-1. Use and share quantitative observations of local weather conditions to describe patterns over time.

Clarification Statements:

Examples of quantitative observations could include numbers of sunny, windy, and rainy days in a month, and relative temperature.

Quantitative observations should be limited to whole numbers.

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ESS2-1 Investigate and compare the effectiveness of multiple solutions designed to slow or prevent wind or water from changing the shape of the land.*

Clarification Statements:

Solutions to be compared could include different designs of dikes and windbreaks to hold back wind and water, and different designs for using shrubs, grass, and trees to hold back the land.

Solutions can be generated or provided.

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3-ESS2-1. Use graphs and tables of local weather data to describe and predict typical weather during a particular season in an area.

Clarification Statements:

Examples of weather data could include temperature, amount and type of precipitation (e.g., rain, snow), wind direction, and wind speed.

Graphical displays should focus on pictographs and bar graphs.

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4-ESS2-1. Make observations and collect data to provide evidence that rocks, soils, and sediments are broken into smaller pieces through mechanical weathering and moved around through erosion.

Clarification Statements:

Mechanical weathering processes can include frost wedging, abrasion, and tree root wedging.

Erosion can include movement by blowing wind, flowing water, and moving ice.

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5-ESS2-1. Use a model to describe the cycling of water through a watershed through evaporation, precipitation, absorption, surface runoff, and condensation

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8.MS-ESS2-1. Use a model to illustrate that energy from Earth’s interior drives convection that cycles Earth’s crust, leading to melting, crystallization, weathering, and deformation of large rock formations, including generation of ocean sea floor at ridges, submergence of ocean sea floor at trenches, mountain building, and active volcanic chains.