Easy⏱ timeWeeks$ cost3
Plastic Breakdown Test
Bury different plastics and 'natural' materials to see what breaks down over weeks.
Start building ↓
Result first
The build
Step 01
Cut samples
Use equal pieces of each material.
Step 02
Bury them
Place each in moist soil, labelled.
Step 03
Keep moist
Water periodically.
Step 04
Dig up & compare
Check breakdown weekly.
Working Principle
Microbes break down natural materials but barely touch ordinary plastics, so the plastics emerge nearly unchanged.
The science behind it
A closer look
Biodegradation needs molecules microbes can digest; most plastics persist for centuries, the core of pollution problems.
Take it further
Variables to test
- 1 Compare 'compostable' vs normal plastic.
- 2 Warm vs cool soil — faster breakdown?
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