NGSS · High School (9–12)

HS-ESS3-6 Represent relationships among Earth systems modified by humans

Use a computational representation to illustrate the relationships among Earth systems and how those relationships are being modified due to human activity.

Clarification statement: Examples of Earth systems to be considered are the hydrosphere, atmosphere, cryosphere, geosphere, and/or biosphere. An example of the far-reaching impacts from a human activity is how an increase in atmospheric carbon dioxide results in an increase in photosynthetic biomass on land and an increase in ocean acidification, with resulting impacts on sea organism health and marine populations.

Assessment boundary: Assessment does not include running computational representations but is limited to using the published results of scientific computational models.

Why water teaches this standard well

The hydrosphere and cryosphere are named among the Earth systems this standard represents, so shrinking snowpack, changing precipitation, and sea level rise are on-target. Students can use published model results to show how a warming atmosphere reshapes the water cycle that supplies their region.

Materials tagged with this code are written to the full standard , including its clarification statement and assessment boundary, and each carries a written note explaining the alignment. See how we review materials.

5 materials aligned to HS-ESS3-6

Lesson plans

Worksheets

Writing prompts

Grade 12 Writing prompt

Shifting Snowmelt Timing in the Verdigan Basin

A grade 12 explanatory writing prompt using model output from a fictional mountain basin to explain why earlier snowmelt shrinks summer streamflow.

Science 2 sessions, ~90 min total Answer key

Quizzes & test questions