1. Create a graph of the data or collate the data as a class and then graph the data.
2. Group the materials into categories (not based on their biodegradability).
- How did you decide on those categories?
- What was the most biodegradable category?
- What was the [east biodegradable category?
3. Group your most biodegradable items and your least biodegradable items together.
4. Can you see anything that links these items?
Based on this, can you predict how biodegradable the following items might be?
• apple stump/banana skin
• a sheet of wood
• a cotton sock
• a synthetic sock
• a fizzy drink can
• polystyrene cup
Conclusion
• What were your conclusions for this experiment?