General Overview
Performance Expectation 5-ESS3-1: Obtain and combine information about ways individual communities use science ideas to protect the Earth’s resources and environment.
The word “communities” in this standard is deliberately broad. It includes cities and towns that have adopted water conservation programs, Indigenous communities whose traditional ecological knowledge has guided sustainable land management for centuries, farming communities that have implemented soil conservation practices developed through scientific research, coastal communities that have restored oyster reefs to protect shorelines, and urban neighborhoods that have created green infrastructure to manage stormwater. Science is not only practiced in laboratories and field stations; it is applied in communities of every size, culture, and context around the world to address the real challenge of living on a planet with finite resources.
The science and engineering practice is Obtaining, Evaluating, and Communicating Information: students gather information from books and reliable media about real community environmental protection efforts, evaluate the scientific basis of each effort, and communicate their findings. The disciplinary core idea is ESS3.C (Human Impacts on Earth’s Systems): human activities in agriculture, industry, and everyday life have had major effects on land, vegetation, streams, ocean, air, and even outer space; but individuals and communities are doing things to help protect Earth’s resources and environments. The crosscutting concept is Systems and System Models: a system can be described in terms of its components and their interactions, and understanding how human activities affect Earth’s systems is essential for designing protective interventions.
This standard serves as the culminating capstone of the K-5 earth science sequence. It integrates the scientific content built across all five years, including weather and climate, water distribution, Earth’s systems, natural hazards, erosion, and the fossil record, with a civic and action-oriented dimension: what are real people and communities actually doing about environmental protection, and how does science inform those actions? This integration of science knowledge with social action is one of the most important outcomes of a scientifically literate education.
Scope and Sequence
Environmental protection and human impact on Earth have been threads throughout the K-5 sequence. In kindergarten, students learned that humans can change the environment and identified simple actions to reduce their impact. In Grade 2, students compared engineering solutions to reduce erosion by wind and water. In Grade 3, students evaluated design solutions for weather-related hazards. In Grade 4, students generated solutions for reducing impacts of natural geological processes. Each of these prior standards developed one dimension of the complete picture: humans affect Earth’s systems, and humans can also take action to protect them. 5-ESS3-1 zooms out to the community level and asks: what are real communities actually doing, and how does science make those actions more effective?
The shift to the community level is conceptually significant. Individual actions like turning off lights or recycling bottles are important, but they operate at a scale far smaller than the systemic changes needed to meaningfully protect Earth’s resources. Communities can implement watershed protection programs that restore entire river systems. Communities can adopt building codes that require water-efficient fixtures and appliances throughout an entire city’s new construction. Communities can establish marine protected areas where fishing is restricted to allow fish populations to recover. Communities can work together to restore prairies that prevent erosion, purify groundwater, and support native biodiversity. Understanding how collective action amplifies individual effort is an essential civic insight, and this standard introduces it through the lens of environmental science.
In middle school, students evaluate the effectiveness of different community-level and policy-level interventions for reducing human impacts on Earth’s systems, using quantitative data on outcomes. They also begin to examine the trade-offs and equity dimensions of environmental protection decisions: who benefits, who bears the costs, and how are those decisions made in democratic societies. In high school, students analyze global-scale environmental challenges and evaluate the scientific evidence, economic trade-offs, and political dimensions of responses to those challenges. The community-level awareness developed in Grade 5, grounded in specific real-world examples and the science behind them, is the foundation for this progressively more sophisticated analysis of the human relationship with Earth’s systems.
What Students Must Understand
Human activities affect all four of Earth’s major systems. Agricultural practices affect the geosphere through soil erosion and compaction and the hydrosphere through fertilizer and pesticide runoff. Industrial activities affect the atmosphere through the emission of pollutants and greenhouse gases. Urban development affects the hydrosphere by replacing permeable surfaces with impermeable pavement that increases runoff and decreases groundwater recharge. Resource extraction including mining, logging, and overfishing affects the geosphere and biosphere directly and has cascading effects on the other spheres. These impacts are not inevitable: they are the result of specific practices and choices, and different practices and choices can have substantially smaller or even positive impacts on Earth’s systems.
Science provides the knowledge base that makes effective environmental protection possible. Understanding how watersheds function allows communities to identify which land uses most threaten water quality and to protect the most sensitive areas. Understanding how fish populations respond to fishing pressure allows communities to set sustainable harvest limits that maintain populations rather than depleting them. Understanding how plants prevent erosion allows communities to design revegetation programs that rapidly stabilize degraded slopes. Understanding the chemical processes of soil formation allows farmers to adopt practices that build rather than deplete soil organic matter. In every case, the science knowledge developed through research, much of it done by government agencies like the USGS, NOAA, and the EPA, is what makes targeted, evidence-based protection possible.
Communities use scientific knowledge to protect Earth’s resources through a wide range of approaches. Regulatory approaches include water quality standards, endangered species protections, clean air regulations, and land use zoning laws that restrict development in ecologically sensitive areas. Market-based approaches include water pricing structures that discourage waste, subsidies for sustainable agriculture, and markets for ecosystem services that pay landowners to maintain natural areas for the water purification, flood control, and carbon storage they provide. Education and outreach approaches include public awareness campaigns, citizen science programs that engage community members in monitoring environmental conditions, and school programs like this one that build the scientific literacy needed for informed civic participation. Restoration approaches include removing invasive species, replanting native vegetation, breaching dams to restore river connectivity, and introducing or reintroducing keystone species that maintain ecosystem function.
Key vocabulary includes: community, resource, protection, watershed, pollution, runoff, sustainable, conservation, restoration, biodiversity, ecosystem, regulation, citizen science, traditional ecological knowledge, and environmental.
Lesson Ideas and Activities
A community environmental research project is the core activity for this standard. Each student or small group investigates one specific example of a community using science to protect Earth’s resources. The research should be conducted using at least two different sources. Communities to investigate might include the Chesapeake Bay restoration effort in the mid-Atlantic United States, the wetland restoration programs of coastal Louisiana, the water conservation programs of Las Vegas and Tucson, urban tree-planting initiatives in cities like New York and Chicago that reduce stormwater runoff, Indigenous salmon management programs in the Pacific Northwest, community-based marine protected areas in Hawaii, or citizen science water quality monitoring programs in hundreds of communities nationwide. Students present their findings with a display that answers: what resource or Earth system is being protected, what was the human activity that threatened it, what scientific knowledge guides the protection effort, and what measurable outcomes has the community achieved or is working toward?
A local watershed investigation connects the standard to students’ own community. Most students live in a watershed, an area of land that drains to a single water body, and most watersheds face identifiable human-impact challenges. Teachers can obtain watershed maps and water quality reports from local environmental agencies, watershed councils, or state environmental protection departments. Students examine the map to identify what land uses exist in their watershed, interview a local environmental professional if possible, and research what the community is doing to protect watershed health. Students connect their findings to the sphere interactions framework: how do land uses in the watershed affect the hydrosphere? How do they affect the biosphere? What science-based actions are being taken to reduce those impacts?
An Indigenous environmental knowledge investigation honors the deep scientific knowledge embedded in the traditional ecological practices of Indigenous communities. Many Indigenous peoples have developed sophisticated, empirically-grounded approaches to managing fish, forests, fire, and water over thousands of years, and these knowledge systems are increasingly recognized as complementary to and in many cases ahead of Western scientific understanding. Students research a specific example: the prescribed burning practices of California Indigenous peoples that maintained fire-adapted ecosystems and are now being adopted by the state forest service; the Pacific Northwest Indigenous salmon management traditions that maintained salmon populations for thousands of years before commercial overfishing; or the traditional water management systems of Puebloan communities in the arid Southwest. Students describe the practice, explain the scientific reasoning behind it, and discuss how it is being used today in combination with Western scientific approaches.
A citizen science participation activity connects students directly to community environmental protection through authentic data collection. Many national programs including Globe Observer, eBird, iNaturalist, CoCoRaHS, and Secchi Dip-In allow students to contribute real scientific data about weather, biodiversity, water quality, and other environmental conditions. Students participate in one of these programs, submitting data about their local environment that contributes to a national or global dataset used by professional scientists and environmental managers. The experience of actually contributing to scientific knowledge about Earth’s condition reinforces the lesson that community members, not just professional scientists, play a role in generating the information base that guides environmental protection decisions.
A systems impact analysis activity asks students to trace the effects of a human activity through Earth’s systems using the sphere interaction framework from 5-ESS2-1. Students select one human activity that affects the environment, such as agricultural fertilizer use, urban parking lot construction, or coal-fired power generation, and systematically trace its effects through all four spheres. Fertilizer applied to a cornfield runs off into a river, which carries excess nutrients to a coastal bay, where they cause algal blooms that consume oxygen and kill fish. This process involves the geosphere, hydrosphere, and biosphere, and the biosphere effects include both the algae benefiting from excess nutrients and the fish and other organisms harmed by oxygen depletion. Students then research what protective measures address each stage of the chain and who in the community is responsible for implementing them.
A compare-and-contrast community research activity pairs students with research partners in schools in different parts of the country through a structured pen-pal or video-call program. Each school researches their local community’s primary environmental protection efforts and shares findings with their partner school. Students then compare: do communities in different regions face different environmental challenges? Do they use different scientific approaches? How are the solutions similar or different? This activity develops geographic thinking, reinforces the diversity of Earth’s systems challenges, and builds understanding that environmental protection is a national and global endeavor involving communities of every type.
Common Student Misconceptions
The most common misconception is that environmental protection is only the responsibility of government agencies and scientists. Many students enter fifth grade with the belief that environmental problems are too large for ordinary people and communities to affect, and that solutions belong to specialists and officials. The standard directly challenges this by focusing on what individual communities, not governments or global bodies, are doing. Citizen science programs, community watershed councils, neighborhood tree-planting initiatives, and traditional ecological management practices are all examples of ordinary people using scientific knowledge to protect their local environment. Showing students concrete, local examples of community environmental action is more effective at changing this misconception than any amount of abstract argument about individual responsibility.
A second misconception is that environmental protection and economic development are always in conflict. Students who have absorbed media coverage of environmental debates may believe that protecting the environment necessarily means preventing economic activity. In fact, many of the most successful community environmental protection efforts have demonstrated economic benefits alongside ecological ones: oyster reef restoration has simultaneously improved water quality and revitalized oyster harvesting industries; urban tree canopy expansion reduces cooling costs and stormwater infrastructure costs while improving air quality and community health; sustainable fisheries management has rebuilt fish populations that support commercial fishing economies. The idea that ecological and economic health can be complementary rather than competing requires exposure to real-world examples, which the research activity in this standard provides.
A third misconception is that environmental damage is always reversible if we just stop the harmful activity. While many ecosystems do recover when stressors are removed, recovery is often much slower and more difficult than the original degradation. A stream that took 50 years of agricultural runoff to reach a degraded state may require active restoration work over decades to recover healthy fish populations, and some aspects of the ecosystem may not fully recover at all if soil structure has been fundamentally altered or keystone species have been extirpated from the region. Teaching students the concept of ecological resilience alongside environmental recovery, including the idea that some changes are difficult or impossible to reverse, builds a more accurate understanding of what environmental protection means and why prevention is generally far more effective and economical than remediation.
A fourth misconception is that science alone determines what environmental protection decisions are made. While science provides essential information about the state of Earth’s systems and the likely consequences of different actions, the actual decisions about environmental protection involve values, economics, politics, and cultural considerations that go beyond what science alone can answer. Science can tell us that a particular river is below the threshold of ecological health and that restoring riparian buffers would improve water quality significantly. Science cannot tell us who should pay for the restoration, how the costs should be distributed between farmers and downstream residents, or how to balance the economic interests of farmers with the ecological interests of the community. Helping students understand both what science contributes to these decisions and where its contribution ends is essential for developing the sophisticated civic understanding that environmental stewardship requires.
A fifth misconception is that all environmental protection efforts are equally effective. Students may assume that any action labeled “environmental protection” is meaningful and that all communities’ efforts are comparable. In reality, the effectiveness of environmental protection actions varies enormously depending on whether they address root causes or symptoms, whether they are implemented at the appropriate scale, whether they are based on sound scientific evidence, and whether they are adequately funded and monitored. Evaluating environmental protection efforts critically, asking what evidence demonstrates that an action is working, is part of the scientific thinking that this standard develops. Students who learn to ask “how do we know this is working?” as well as “what is this community doing?” are developing the evidence-based evaluation skills that will serve them throughout their engagement with environmental science and policy.
A sixth misconception is that Indigenous ecological knowledge is less scientific than Western scientific knowledge. Some students may hold the belief, often absorbed from broader cultural messages, that science and Indigenous tradition are fundamentally different types of knowledge, with science being rigorous and reliable and Indigenous knowledge being merely cultural or spiritual. In fact, many Indigenous ecological practices encode highly sophisticated empirical knowledge developed through careful observation over many generations, and they have been validated by Western scientific methods in numerous cases. The prescribed burning practices, salmon management traditions, and water harvesting systems of various Indigenous peoples represent tested, evidence-based approaches to environmental management that have sustained ecosystems for centuries under conditions that Western scientific management has sometimes failed to maintain. Honoring this knowledge as scientific in nature, while acknowledging its cultural embedding, is both accurate and respectful.
Assessment Questions
Describe one specific way that a community you researched uses science to protect Earth’s resources. What resource or Earth system is being protected? What human activity threatened it? What scientific knowledge guides the protection effort?
A community near a river has been experiencing declining water quality and fish populations. Scientists studying the watershed find that agricultural runoff carrying excess fertilizer is the primary cause. What scientific knowledge would help community members and farmers design a solution? What types of community actions, drawing on that scientific knowledge, could reduce the problem?
Choose a community environmental protection effort. Describe what measurable evidence the community uses to track whether the effort is working. Why is it important to measure outcomes rather than just measure effort?
Using the Earth systems framework we learned in 5-ESS2-1, trace how a single human land use decision, such as converting a wetland to a parking lot, affects at least three of Earth’s four spheres. Then describe what a community could do to reduce or reverse those effects, drawing on scientific knowledge.
Compare two different communities facing the same environmental challenge, such as protecting fresh water quality in their local watershed. How are their approaches similar? How are they different? What might explain the differences?
Explain what citizen science is and how it connects ordinary community members to environmental protection efforts. What scientific value does citizen science data have? What limitations does it have compared to professional scientific data?
A student says: “Environmental protection is the government’s job, not something that communities can do.” Based on the examples we researched, write a response to this student that uses at least two specific community examples to challenge or qualify this claim.
What is the difference between an environmental protection effort that addresses the symptoms of a problem and one that addresses the root cause? Give an example of each type. Which type is likely to be more effective in the long term, and why?