Paper 1 structured question: Management of oil pollution
Paper 1TheoryPractical6 marks
Method
Testing Boom Effectiveness
A rectangular water tank is filled with water. A measured amount of oil is added to one end. A boom is placed to contain the oil. The spread of oil beyond the boom is observed and recorded over time.
| Step | Description |
|---|---|
| 1 | Fill tank with water |
| 2 | Add measured oil at one end |
| 3 | Place boom across tank |
| 4 | Observe and record oil spread beyond boom every 5 minutes |
- a[1]
Identify the independent variable in this investigation.
- b[1]
Suggest one control variable that should be kept constant during the investigation.
- c[2]
Describe how you would improve the reliability of the results.
- d[2]
Explain one safety consideration when conducting this investigation.