Earth’s Sphere Explorers: Modeling Systems in the Great Outdoors
Inquiry Framework
Question Framework
Driving Question
The overarching question that guides the entire project.How can we, as environmental scientists, use evidence from our local schoolyard to design and build a model that demonstrates how Earth’s systems interact and depend on one another?Essential Questions
Supporting questions that break down major concepts.- What are the four major systems (spheres) of Earth, and where can we find evidence of them in our local schoolyard?
- How can we use natural materials like soil, rocks, and water to build a working model of Earth’s systems?
- In what ways do two specific Earth systems—such as the hydrosphere and geosphere—depend on each other to function?
- How does the atmosphere influence the biosphere and geosphere to create weather and shape our land?
- What evidence can we observe outdoors that proves Earth's systems are constantly interacting rather than working alone?
Standards & Learning Goals
Learning Goals
By the end of this project, students will be able to:- Identify and categorize physical evidence of the biosphere, geosphere, hydrosphere, and atmosphere within a local outdoor environment.
- Observe and document specific examples of interactions between two or more Earth systems (e.g., plants growing in soil, water runoff on rocks).
- Design and construct a physical model using natural materials (soil, rocks, water, etc.) that accurately represents the relationship between specific Earth spheres.
- Apply scientific vocabulary to explain how Earth’s systems are interconnected and how a change in one system can impact another.
Next Generation Science Standards (NGSS)
Entry Events
Events that will be used to introduce the project to studentsThe Evidence of Interdependence Field Trip
Students are introduced to the concept of 'Closed Systems' in the classroom. They then head to a local outdoor site to identify how nature manages these systems without human help. Students identify the four spheres on-site and must find 'Evidence of Interdependence' (like a worm in the soil or moss on a rock) to prove that Earth's systems never work alone. This fieldwork directly informs the design of their 'Self-Sustaining Sphere' models.The Interaction Scavenger Hunt
Following a direct instruction session on Earth's systems, students embark on an 'Interaction Scavenger Hunt.' They are given a list of specific interactions to find outdoors (e.g., 'Atmosphere meeting Geosphere' or 'Biosphere meeting Hydrosphere'). Once found, they must harvest a small sample of the materials involved (like damp soil or a leaf with dew) to begin their 'System Inventory' for their modeling phase.The Schoolyard Sphere Audit
After an introductory lesson on the four Earth spheres (geosphere, biosphere, hydrosphere, and atmosphere), students are equipped with 'Sphere Audit' clipboards and head outdoors. Their task is to identify three physical elements of each sphere and find one specific location where they can see two spheres interacting (e.g., a plant growing in soil or a puddle soaking into the dirt). This field data serves as the blueprint for their upcoming physical models.Portfolio Activities
Portfolio Activities
These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.Sphere Detective Field Journal
In this foundational activity, students transform into 'Sphere Detectives.' They will head outdoors to the schoolyard or a local park to find tangible evidence of Earth's four systems. The goal is not just to see them, but to find 'Interaction Points'—specific locations where two spheres are actively working together (e.g., a tree root breaking a rock or rain forming a puddle on the soil).Steps
Here is some basic scaffolding to help students complete the activity.Final Product
What students will submit as the final product of the activityA 'Sphere Detective Field Log' containing a categorized list of observations, two detailed sketches of found interactions, and a 'proof of interaction' paragraph.Alignment
How this activity aligns with the learning objectives & standardsThis activity directly addresses the 'identifying systems' portion of 5-ESS2-1. By finding physical evidence, students build the foundational knowledge of what constitutes the geosphere, biosphere, hydrosphere, and atmosphere in a real-world context before attempting to model them.The 'World in a Jar' Construction Lab
Students will now build their 'Self-Sustaining Sphere' using the materials they identified and the blueprints they designed. After construction, students will perform a 'System Check,' where they observe their model for a short period (looking for things like condensation on the lid representing the atmosphere or soil absorbing water) and write a final scientific explanation of the interaction.Steps
Here is some basic scaffolding to help students complete the activity.Final Product
What students will submit as the final product of the activityA physical 3D model (using a container, soil, rocks, and plants) and a 'Technical Manual' card that explains the specific interaction being modeled.Alignment
How this activity aligns with the learning objectives & standardsThis fulfills the core requirement of 5-ESS2-1: 'Develop a model using an example to describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact.' By building the model and explaining it, students demonstrate mastery of the concept that Earth's systems are a single, interconnected unit.System Architect: The Model Blueprint
Using the data gathered during their field investigation, students will now design a physical model. They must decide which materials (soil, gravel, moss, water, etc.) will best represent the spheres they observed. The blueprint serves as a scientific plan, ensuring that their model isn't just a craft project, but a functional representation of system interactions.Steps
Here is some basic scaffolding to help students complete the activity.Final Product
What students will submit as the final product of the activityA labeled scientific blueprint (diagram) that includes a materials list, a cross-section drawing of the proposed model, and 'Interaction Arrows' showing where the systems will meet.Alignment
How this activity aligns with the learning objectives & standardsThis activity aligns with the NGSS Science and Engineering Practice (SEP) of 'Developing and Using Models.' It requires students to plan how they will represent the complex interactions they observed outdoors within a controlled, small-scale physical model.Rubric & Reflection
Portfolio Rubric
Grading criteria for assessing the overall project portfolioEarth's Systems: Interactions in the Schoolyard & Beyond
Field Investigation & Data Collection
Focuses on the student's ability to act as a 'Sphere Detective,' gathering real-world data and identifying system intersections in the field.Sphere Identification & Evidence
The ability to accurately identify and provide tangible evidence for the four Earth systems (geosphere, biosphere, hydrosphere, and atmosphere) within a local environment.
Exemplary
4 PointsIdentifies all four spheres with highly specific, diverse, and nuanced local examples; field notes provide vivid detail and clear evidence of each system's presence.
Proficient
3 PointsIdentifies all four spheres with accurate local examples; field notes clearly categorize observations into the correct quadrants.
Developing
2 PointsIdentifies at least three spheres with basic examples; some observations may be misplaced or lack descriptive detail.
Beginning
1 PointsIdentifies two or fewer spheres; examples are missing, inaccurate, or lack connection to the local environment.
Field Observation of Interactions
The ability to observe and document a specific 'Interaction Zone' where two or more Earth systems meet and influence one another.
Exemplary
4 PointsIdentifies a complex interaction; sketch is exceptionally detailed; evidence statement provides a sophisticated explanation of mutual interdependence.
Proficient
3 PointsIdentifies a clear interaction (e.g., plant in soil); sketch is accurate; evidence statement correctly explains how the two spheres work together.
Developing
2 PointsIdentifies an interaction but the description is vague; sketch lacks detail or fails to clearly show the point of contact between systems.
Beginning
1 PointsStruggles to identify a valid interaction; evidence statement is missing or does not explain a relationship between spheres.
Modeling & Architectural Planning
Evaluates the NGSS Science and Engineering Practice of 'Developing and Using Models' through the creation of a purposeful design.Scientific Blueprint & Design
The ability to translate outdoor observations into a planned scientific representation, including materials and labeling.
Exemplary
4 PointsBlueprint is professional and highly detailed; labels use advanced scientific vocabulary; materials list shows a strategic choice for representing specific sphere properties.
Proficient
3 PointsBlueprint is clear and organized; accurately labels all spheres and materials; provides a logical cross-section of the proposed model.
Developing
2 PointsBlueprint is functional but basic; labels are present but may use non-scientific terms; materials list is incomplete or lacks clear purpose.
Beginning
1 PointsBlueprint is messy or incomplete; lacks labels for spheres or a clear plan for construction; materials are not linked to spheres.
Visualizing Interconnectedness
The use of 'Interaction Arrows' to visualize and explain the movement of matter or energy between systems in the model.
Exemplary
4 PointsArrows demonstrate a sophisticated understanding of cycles (e.g., water cycle or nutrient flow); explanation clearly connects energy/matter movement to system survival.
Proficient
3 PointsArrows accurately indicate the direction of interaction between at least two systems (e.g., water soaking into soil); labels explain the interaction.
Developing
2 PointsArrows are present but may point in confusing directions or lack clear explanations of what is moving between systems.
Beginning
1 PointsInteraction arrows are missing or show no understanding of how systems communicate or exchange matter.
Construction & System Analysis
Assesses the final physical deliverable and the student's capacity to explain the science behind their creation.Physical Model Construction
The ability to build a physical model using natural materials that accurately represents the interaction of at least two Earth systems.
Exemplary
4 PointsModel is expertly constructed and functions as a self-sustaining system; shows innovative use of materials to represent the atmosphere and hydrosphere.
Proficient
3 PointsModel is well-constructed and clearly represents the chosen spheres; stable and organized; uses materials that appropriately mirror real-world systems.
Developing
2 PointsModel is constructed but fragile or disorganized; materials are used but the representation of specific spheres is unclear or inconsistent.
Beginning
1 PointsModel is incomplete or fails to use materials that represent the spheres; does not demonstrate a physical connection between systems.
Scientific Explanation & Synthesis
The ability to use the model to explain scientific concepts and answer the driving question through a 'Technical Manual' card.
Exemplary
4 PointsProvides a comprehensive scientific argument; uses evidence from the model to prove interdependence; demonstrates mastery of 5-ESS2-1 with advanced vocabulary.
Proficient
3 PointsProvides a clear explanation of how the model proves two systems are interacting; uses appropriate scientific vocabulary to answer the driving question.
Developing
2 PointsExplanation is brief or partially incorrect; basic attempt to answer the driving question but lacks specific evidence from the physical model.
Beginning
1 PointsExplanation is missing or inaccurate; fails to connect the physical model to the concept of Earth system interactions.