MS-ESS2-2
The standard
Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.
Next Generation Science Standards
What this standard means
Students need to explain how Earth’s surface changes, using evidence from maps, photos, rock layers, data tables, or models. They should connect a process, like erosion, deposition, plate movement, volcanic activity, earthquakes, landslides, or impacts, to a landform or surface change. They also need to compare scale, from tiny chemical weathering to mountain building, and from sudden events to changes over millions of years.
Mastery looks like a clear claim backed by specific evidence and sound reasoning about time and size. Students often list processes without explaining cause and effect. They also confuse fast events with large effects, or think slow processes cannot make major changes.
Ways to teach it
- Use stream tables with sand, water, and pebbles so students model erosion, deposition, and channel changes over repeated trials.
- Ask students to explain which changed Earth’s surface more, one landslide or a river over 10,000 years, using evidence.
- Show two landform photos and have students write a claim, two evidence points, and reasoning for the process that formed each.
- Have students identify one local hill, riverbank, beach, or road cut and describe the processes that likely shaped it.
Plan a lesson for MS-ESS2-2
Generate a complete lesson plan aligned to this standard, with objectives, activities, and materials. Free, no account needed.
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