Eco-Loop Challenge: 15-Week Mission

What is a Closed-Loop System?

A closed-loop system is a process where waste from one part of the cycle becomes the input for another. Earth is a natural closed-loop system where water, carbon, and nutrients are endlessly recycled. We can mimic this by building a sealed bottle biosphere as a miniature "Silent Professor." Once understood, we can scale this concept up to school grounds, turning food waste and rainwater into garden nutrients.

1. The Control Group: Sealed Bottle Biosphere

Sealed bottle garden setup

Biosphere Volume Calculator

Drainage (15%): 150 ml

Charcoal (5%): 50 ml

Soil (35%): 350 ml

Material ratio diagram

2. Monitor & Compare

Comparative analysis

Every time the club meets, Analysts compare the Bottle Control Group to the garden loop to investigate environmental variables.

3. 15-Week Project Roadmap

PhaseWeeksFocus
Preparation1Build bottle control group.
Planning2-3Site audit, research, design pitch.
Build & Iterate4-12Engineering, sensor integration, vlogs.
Measurement13-14Comparative analysis.
Presentation15BNE Award pitch.

4. The 6-Member Team (Suggested Activities)

Biologists: Soil pH testing, microbiome observation, nutrient logs.
Techs: Micro:bit programming, solar/pump automation maintenance.
Analysts: Budget (€150), data visualization, vlog protocols.
Logisticians: Supply chain, tool inventory, safety compliance.
Communicators: Community outreach, presentation design, social media.
Researchers: Literature review, regulatory standards, sustainability reporting.

5. Educational & Compliance Frameworks

6. Team Activity Journal

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