Eco-Consultants: Predicting Environmental Impacts on Local Food Webs
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Eco-Consultants: Predicting Environmental Impacts on Local Food Webs

Grade 7Science5 days
5.0 (1 rating)
In this project, 7th-grade students step into the role of ecological consultants to design models predicting the impacts of environmental changes on local food webs. Through field research, students identify native species to construct a "Flow Master Diagram" illustrating the one-way flow of energy and the continuous cycling of matter. Students then analyze the ripple effects of environmental "shockers," such as habitat loss or invasive species, and conclude by pitching evidence-based restoration strategies to a community council.
EcosystemsFood WebsEnergy FlowMatter CyclingEcological ModelingEnvironmental ImpactSustainability
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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.How can we, as ecological consultants, design a model to predict how environmental changes will impact the flow of energy and the cycling of matter in our local ecosystem?

Essential Questions

Supporting questions that break down major concepts.
  • How does energy flow through an ecosystem, and what happens to it at each stage of a food web?
  • How is matter continuously recycled between the living and non-living parts of our local environment?
  • How can we use models to represent the complex relationships between producers, consumers, and decomposers?
  • In what ways does the removal or addition of a single species disrupt the delicate balance of energy and matter in an ecosystem?
  • How can we, as consultants, use data and modeling to predict the long-term impacts of human-driven or natural environmental changes?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:
  • Students will develop a comprehensive model of a local food web that accurately represents the roles of producers, consumers, and decomposers.
  • Students will explain the flow of energy through an ecosystem, accounting for energy loss at each trophic level.
  • Students will describe how matter is cycled through both the biotic (living) and abiotic (non-living) components of a local ecosystem.
  • Students will use evidence-based reasoning to predict how specific environmental changes (e.g., habitat loss, climate change, or invasive species) disrupt the stability of an ecosystem.
  • Students will communicate complex scientific data and predictions in the role of an ecological consultant to a community audience.

Next Generation Science Standards (NGSS)

MS-LS2-3
Primary
Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.Reason: This is the core standard requested by the teacher and directly addresses the primary objective of modeling energy flow and matter cycling.
MS-LS2-4
Primary
Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.Reason: This standard aligns with the project's focus on predicting the impacts of environmental changes on the delicate balance of the ecosystem.
MS-LS2-2
Secondary
Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.Reason: This standard supports the understanding of symbiotic relationships, predation, and competition within the food web models students are designing.

Common Core State Standards (English Language Arts)

CCSS.ELA-LITERACY.WHST.6-8.1
Supporting
Write arguments to support claims with clear reasons and relevant evidence.Reason: As ecological consultants, students must write evidence-based arguments to justify their predictions regarding environmental impacts.
CCSS.ELA-LITERACY.RST.6-8.7
Supporting
Integrate quantitative or technical information expressed in words in a text with a version of that information expressed visually (e.g., in a flowchart, diagram, model, graph, or table).Reason: This standard aligns with the creation of the food web model as a visual representation of technical ecological data.

Entry Events

Events that will be used to introduce the project to students

The Vanishing Keystone Mystery

Students enter a classroom cordoned off with 'Ecological Hazard' tape to find a 'crime scene' involving a missing keystone species from a nearby park. A frantic video from a local park ranger explains that the ecosystem's energy flow is stuttering and waste is piling up, tasking the students as lead consultants to solve the mystery of where the matter is going.

The Great Jenga Collapse

Students participate in a high-stakes 'Ecosystem Jenga' game where blocks are labeled with local organisms and abiotic factors, but they must remove pieces based on real-world news headlines (e.g., 'New Parking Lot Built' or 'Invasive Beetle Arrives'). As the tower becomes unstable, students must pause to map out exactly why the removal of one 'matter' block is causing the 'energy' of the entire structure to tilt toward collapse.

Menu for the End of the World

Students are served a 'deconstructed' version of a popular local food item (like a regional burger or taco) and told that due to a 'matter bottleneck' in the local environment, this meal will soon be extinct. They must work backward from their plate to the sun, identifying every point where the energy flow is being blocked and proposing a redesign of the local food web to save their favorite lunch.

The Neighborhood Dead-Zone Simulation

Using a digital map of their own school neighborhood, students 'toggle off' specific layers like 'Insects' or 'Topsoil' to see an AI-generated prediction of their town's future. They are challenged to find the 'Dead Zones' where matter is no longer cycling and energy is trapped, forcing them to step in as consultants to restore the digital map to a healthy, green state.
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Portfolio Activities

Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.
Activity 1

The Local Biome Blueprint

Before students can model a food web, they must act as field researchers to identify the 'key players' in their local ecosystem. In this activity, students will research and categorize local organisms into their ecological roles (producers, consumers, and decomposers) and identify the abiotic factors (sunlight, soil, water, air) that facilitate the cycling of matter.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Select a specific local habitat (e.g., a nearby forest, a local pond, or the school's own backyard ecosystem).
2. Research and list at least 3 producers, 5 consumers (primary, secondary, and tertiary), and 2 decomposers native to that area.
3. Identify the non-living (abiotic) components that these organisms rely on to survive and cycle matter.
4. Create a digital or physical 'Field Guide' entry for each organism that includes its common name, scientific name, and what it eats/what eats it.

Final Product

What students will submit as the final product of the activityA 'Local Ecosystem Field Guide' featuring annotated profiles of at least 10 organisms and 3 abiotic factors, categorizing their roles and energy sources.

Alignment

How this activity aligns with the learning objectives & standardsMS-LS2-3: This activity focuses on identifying the specific living (biotic) and nonliving (abiotic) components required to develop a comprehensive model of matter cycling and energy flow.
Activity 2

The Flow Master Diagram

Now that students have their 'players,' they must map the 'game.' In this activity, students create a complex visual model showing how energy travels through the food web and how matter (like carbon and nitrogen) cycles back through the decomposers. They will use specific color-coded arrows to distinguish between the one-way flow of energy and the circular path of matter.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Arrange your species entries from Activity 1 into a logical food web hierarchy, starting with the sun as the energy source.
2. Draw yellow arrows to represent the flow of energy. Label where energy is lost as heat (using the 10% rule concept).
3. Draw blue arrows to represent the cycling of matter, specifically showing how decomposers return nutrients from dead organisms back to the soil/producers.
4. Annotate the map with 'Matter Bottleneck' zones—areas where the cycle might be easily interrupted.

Final Product

What students will submit as the final product of the activityA 'Flow & Cycle Master Map'—a large-scale visual model (digital or poster) that illustrates the connections between all identified species and abiotic factors.

Alignment

How this activity aligns with the learning objectives & standardsMS-LS2-3 & RST.6-8.7: Students integrate technical information into a visual model to describe the cycling of matter and the flow of energy from the sun through the food web.
Activity 3

The System Shock Simulation

Consultants must be able to predict trouble. In this activity, students are presented with a 'System Shocker'—a specific environmental change like an invasive species, a new shopping mall construction, or a significant temperature shift. They must apply this change to their Flow Master Diagram and use 'Impact Stickers' to mark which populations will decrease, increase, or migrate as a result.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Choose or be assigned a 'System Shocker' (e.g., 'Invasive Emerald Ash Borer Arrives' or 'Local Stream Polluted by Runoff').
2. Identify the 'First Point of Impact'—the specific organism or abiotic factor directly hit by the change.
3. Trace the ripple effect through the food web. If a producer dies, what happens to the primary consumer? If a top predator disappears, does the secondary consumer population explode?
4. Use visual indicators (like red 'X's for decreases and green '+' signs for increases) to show the predicted population shifts on your map.

Final Product

What students will submit as the final product of the activityThe 'Ecosystem Stress Test'—a modified version of their original model showing the 'ripple effect' of their chosen environmental change.

Alignment

How this activity aligns with the learning objectives & standardsMS-LS2-4 & MS-LS2-2: This activity requires students to predict how changes to physical or biological components (the 'Shocker') affect populations and interactions within the ecosystem.
Activity 4

The Consultant’s Case Study

Data is a consultant's best friend. In this activity, students move from visual modeling to scientific writing. They will draft a formal 'Consultant’s Brief' that argues how their 'System Shocker' will impact the long-term health of the ecosystem. They must use the data from their models and research to provide evidence for their claims.

Steps

Here is some basic scaffolding to help students complete the activity.
1. State a clear claim regarding the long-term stability of the ecosystem following the 'System Shocker.'
2. Provide at least three pieces of evidence from your model (e.g., 'Because the energy flow to the Red-Tailed Hawk is cut by 40%, we predict...').
3. Explain the reasoning: connect your evidence back to the scientific principles of energy loss and matter cycling.
4. Include a 'Restoration Recommendation'—one specific action that could help balance the matter cycle or energy flow again.

Final Product

What students will submit as the final product of the activityA 2-page 'Ecological Impact Brief' written in professional consultant tone, addressing a community board or park ranger.

Alignment

How this activity aligns with the learning objectives & standardsWHST.6-8.1 & MS-LS2-4: Students write a formal argument supported by empirical evidence to justify their predictions of how the ecosystem will react to environmental changes.
Activity 5

The Restoration Roadmap Pitch

In the final stage, students package their research, models, and briefs into a 'Restoration Portfolio.' They will record a short video or give a live presentation to the 'Community Council' (the class), explaining their model and their proposed solutions to the 'Vanishing Keystone' or other ecological threats.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Organize all previous activities (Field Guide, Flow Map, Stress Test, and Brief) into a professional portfolio.
2. Design a 'Restoration Roadmap'—a final visual that shows the ecosystem in a 'restored' state after your intervention.
3. Prepare a 3-minute pitch that explains the 'Driving Question': How can we predict and mitigate these environmental changes?
4. Present your findings to the class and answer 'Council Member' questions about the balance of energy and matter in your model.

Final Product

What students will submit as the final product of the activityThe 'Ecological Consultant Portfolio'—a comprehensive digital or physical folder containing all previous activities, topped with a 'Restoration Roadmap' summary.

Alignment

How this activity aligns with the learning objectives & standardsMS-LS2-3 & RST.6-8.7: This final activity synthesizes all learning goals into a communicative product that demonstrates mastery of modeling the cycling of matter and flow of energy.
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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Ecological Consultants: Food Web and Ecosystem Dynamics Rubric

Category 1

Scientific Modeling and Research

Assesses the student's ability to research local ecosystems and translate that data into a scientifically accurate visual model.
Criterion 1

Modeling Energy and Matter (MS-LS2-3)

The ability to design a visual representation that distinguishes between the one-way flow of energy and the cycling of matter among biotic and abiotic components.

Exemplary
4 Points

Model expertly illustrates the 10% energy rule at each level and maps complex nutrient cycles (e.g., Nitrogen/Carbon) through decomposers and abiotic factors with no errors. Integrated use of digital/physical tools enhances clarity.

Proficient
3 Points

Model accurately uses color-coded arrows to show energy flow from the sun and matter cycling through decomposers. Includes all 10 required organisms and 3 abiotic factors.

Developing
2 Points

Model shows a basic food web but may confuse the direction of energy flow or fail to distinguish between matter cycling and energy flow. Some biotic or abiotic components are missing.

Beginning
1 Points

Model is incomplete or contains significant scientific inaccuracies regarding the roles of producers, consumers, or decomposers. Flow of energy is not shown.

Criterion 2

Ecological Research and Categorization

The accuracy and depth of research regarding local species, their ecological roles, and their reliance on specific abiotic factors.

Exemplary
4 Points

Research goes beyond basic requirements, identifying specific local species names and providing detailed interactions (e.g., symbiotic relationships) that enrich the Field Guide.

Proficient
3 Points

Correctly identifies and categorizes 3 producers, 5 consumers, and 2 decomposers native to the local area, including their specific energy sources and abiotic needs.

Developing
2 Points

Identifies organisms but may misclassify their roles (e.g., calling a scavenger a producer) or uses non-native species for a local biome study.

Beginning
1 Points

Provides fewer than 10 organisms or fails to define the ecological roles and abiotic connections required for the Field Guide.

Category 2

Analysis and Communication

Assesses the student's ability to analyze data, predict outcomes, and communicate findings through formal scientific writing.
Criterion 1

Impact Prediction and Analysis (MS-LS2-4)

The ability to use the developed model to predict how specific changes (invasive species, habitat loss, etc.) affect populations and ecosystem stability.

Exemplary
4 Points

Predictions show a sophisticated understanding of 'ripple effects' (trophic cascades), identifying both direct and indirect impacts on at least three levels of the food web.

Proficient
3 Points

Accurately predicts how the 'System Shocker' impacts the food web, using visual indicators to show increases, decreases, or migrations in specific populations.

Developing
2 Points

Identifies the 'First Point of Impact' but fails to logically trace how that change affects other organisms in the broader food web.

Beginning
1 Points

Predictions are illogical or not grounded in the model; fails to show how an environmental change disrupts the balance of the ecosystem.

Criterion 2

Scientific Argumentation (WHST.6-8.1)

The quality of the written argument, including the use of empirical evidence from the student's own model and scientific reasoning.

Exemplary
4 Points

Argument is highly persuasive with a clear claim, extensive evidence from the model, and reasoning that connects to high-level concepts like the Law of Conservation of Mass.

Proficient
3 Points

Writes a formal brief with a clear claim, three pieces of evidence from the model, and reasoning that explains the disruption of energy or matter.

Developing
2 Points

Provides a claim and some evidence, but the reasoning is weak or doesn't explicitly link the 'System Shocker' to the scientific principles of the model.

Beginning
1 Points

The brief lacks a clear claim or provides insufficient evidence. Tone is informal and does not meet the 'consultant' persona requirements.

Category 3

Synthesis and Presentation

Assesses the student's ability to compile their work and present it as a cohesive, professional solution to a real-world ecological problem.
Criterion 1

Synthesis and Professional Pitch

The ability to synthesize all project components into a professional portfolio and pitch a viable solution for ecosystem restoration.

Exemplary
4 Points

Portfolio is professional and comprehensive; the 'Restoration Roadmap' offers an innovative, science-based solution that demonstrates deep systems thinking. Pitch is compelling and authoritative.

Proficient
3 Points

Portfolio contains all required elements (Field Guide, Map, Stress Test, Brief) and is well-organized. Pitch clearly explains the driving question and proposed restoration.

Developing
2 Points

Portfolio is missing one or two components or is disorganized. The pitch explains the project but lacks a clear restoration strategy or fails to address the driving question.

Beginning
1 Points

Portfolio is incomplete. The final pitch is unclear, shows limited understanding of the project's goals, or fails to engage with the 'Community Council' audience.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning
Question 1

As a consultant, you had to map both energy and matter. Looking at your Flow Master Diagram, why is it critical for the long-term survival of your ecosystem that matter cycles back, while energy must be constantly replenished by the sun?

Text
Required
Question 2

When you applied your 'System Shocker,' which component of your food web caused the most significant 'ripple effect' across the entire ecosystem when it was disrupted?

Multiple choice
Required
Options
Producers (The foundation of energy)
Apex Predators (Top-down population control)
Decomposers (The recycling crew)
Abiotic Factors (The physical environment/resources)
Question 3

How confident do you feel in your ability to use a visual model (like your Flow Master Diagram) to predict how a real-world environmental change will impact a local animal or plant population?

Scale
Required
Question 4

What was the most challenging part of translating complex data—like the 10% energy loss rule or nutrient cycling—into a 'Restoration Roadmap' that a local community member could understand and support?

Text
Required
Question 5

Now that you have completed your portfolio, how has your perspective on local land development (like building new shopping centers or parks) changed? How will you look at your own 'backyard' ecosystem differently?

Text
Optional