NGSS MS-ESS2-4
The Standard
Develop a model to describe the cycling of water through Earth's systems driven by energy from the sun and the force of gravity.
Next Generation Science Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students build and explain a model showing water moving among the atmosphere, land, oceans, ice, groundwater, and living things. They show state changes and identify when sunlight supplies energy and when gravity moves water downward.
What Mastery Looks Like
- Students create a model with clear arrows showing several possible routes among the atmosphere, land, surface water, groundwater, ice, and living things. They correctly connect sunlight to heating and evaporation, and gravity to falling water, runoff, and downward movement through soil.
Common Misconceptions
- Students may think evaporated water disappears or that clouds are made of water vapor rather than droplets or ice crystals. They may treat the cycle as one fixed loop and overlook groundwater, runoff, plant release, freezing, and melting. Some confuse sunlight’s role in evaporation with gravity’s role in precipitation, runoff, and infiltration.
How to Assess It
- Exit ticket: Draw one water droplet moving through four Earth locations. Label two state changes and show where sunlight or gravity causes movement.
Lesson moves
Ways to Teach It
Make a sealed water cycle bag with colored water, tape it to a sunny window, and label evaporation, condensation, and collection.
Write an explanation answering: How can sunlight and gravity move the same water droplet through different parts of Earth?
Give groups pathway cards such as cloud, river, soil, plant, and glacier, then challenge them to build three accurate water routes.
Study a local rainstorm map, then trace where the rainwater could travel during the next day, month, and year.
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Printable MS-ESS2-4 Worksheet
A ready-to-print activity worksheet aligned to MS-ESS2-4, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetLearning progression
Where This Standard Sits
See the whole path on the Earth & Space Science progression map.
Before This Standard
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What This Unlocks
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Related Standards
- HS-ESS2-4
Use a model to describe how variations in the flow of energy into and out of Earth systems result in changes in climate.
- MS-LS2-3
Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
- MS-ESS2-1
Develop a model to describe the cycling of Earth's materials and the flow of energy that drives this process.
- HS-ESS2-6
Develop a quantitative model to describe the cycling of carbon among the hydrosphere, atmosphere, geosphere, and biosphere.
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