Research question: How does the height of the water column (20cm , 40cm, 60cm, 80cm, 100cm ) affect the flow rate of water through a horizontal capillary tube at a fixed radius?SL
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7
Official IB Result
IB Grade: 7
Criteria A: Research Design
5/6
0
3
6
Criteria StrandsPro
A.1Research question context
Excellent
A.2Methodological considerations for collecting data
Good
A.3Methodological considerations
Good
Criteria Feedback
- The student's research question is tightly focused and clearly identifies the variables they are investigating.
- The student places the question in a specific physical context using pressure head and fluid flow.
- The student's method includes several sensible controls and a reproducible constant-head design.
- The method does not fully explain how the tube dimensions were measured.
- The discussion of flow conditions does not sufficiently establish that the model assumptions are valid.
- Some procedural details are still ambiguous enough that another student would not reproduce the investigation exactly.
Criteria B: Data Analysis
6/6
0
3
6
Criteria StrandsPro
B.1Communication of data recording and processing
Poor
B.2Consideration of uncertainties
Moderate
B.3Data processing quality
Poor
Criteria Feedback
- The student includes repeated trials and an uncertainty table, which shows good awareness of measurement limitations.
- The student's processed tables present units and uncertainty information, which helps the reader follow the data.
- The student attempts to connect the graph and processed values back to the research question.
- The raw data presentation is not fully clear because the measured quantity is not always explicitly labelled.
- The graph labeling and later interpretation are inconsistent in places.
- Some processed values and final numerical results do not match each other, which weakens reliability.
Criteria C: Conclusion
5/6
0
3
6
Criteria StrandsPro
C.1Conclusion relevance and support
Moderate
C.2Scientific context comparison
Moderate
Criteria Feedback
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Criteria D: Evaluation
4/6
0
3
6
Criteria StrandsPro
D.1Methodological weaknesses
Good
D.2Suggested improvements
Excellent
Criteria Feedback
- Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
- Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
- Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
- Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.