Internal Assessment Coversheet and Self-Assessment
Investigation title: Investigating a factor that affects stomata density in leaves
Teacher’s Instructions and help given:
“I confirm that this work is my own work and is the final version. I have acknowledged each use of the words or ideas of another person, whether written, oral or visual.”
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Data Collection and Processing
Conclusion and Evaluation
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Complete / 2
Partial / 1
Not at all / 0
Define problem & select variables
Formulates a focused problem/ research question and identifies the relevant variables. Formulates a problem/research question that is incomplete or identifies only some relevant variables. Does not identify a problem/ research question AND does not identify any relevant variables.
Designs a method for the effective control of the variables. Designs a method that makes some attempt to control the variables. Designs a method that does not control the variables.
Developing a method for collection of data
Develops a method that allows for the collection of sufficient relevant data. Develops a method that allows for the collection of insufficient relevant data. Develops a method that does not allow for any relevant data to be collected.
complete & correct
X incorrect or not attempted
Aspect 1: Define the problem and select the variables
Research Question or Aim clearly stated
If a hypothesis is very helpful:
It is quantitative
A sketch graph is included, with explanation
Prediction is explained using scientific theory
Sources are cited
IV correctly identified with units/ range
DV (as directly recorded) correctly identified with units. Statement made if further calculations need to be performed on DV.
Include background to investigation and/or refer to preliminary investigations.
Important control variables identified and presented as table.
Aspect 2: Controlling variables
Method to manipulate IV, including specific details of range or increments
Discuss the likely impact of each control variable.
Method for recording results, including units and uncertainty of tools (± ____ )
Potential impact of each variable on results has been addressed.
List of apparatus including sizes and uncertainty. Better add an annotated photo or diagram of equipment or experimental set-up.
Specific method to keep each controlled variable constant has been explained clearly. This includes values of each controlled variable and equipment used to ensure or measure these values.
Full citation of published protocol, if used (or elements thereof)
Aspect 3: Developing a method for collection of sufficient relevant data (D3.5 – D3.7 only considered if DCP not marked)
Min. 5 increments (or 2 if comparing means) over a suitable range for the IV (unless comparing populations)
Choice of data presentation method (chart or graph type) stated and explained.
Min. 5 repeats (or 10 if comparing means) at each increment to ensure reliability and allow for stats.
Explain how raw data will be transformed into processed data for comparison/ plotting
Range of IV stated and explanation of how this range was chosen (refer D1.4).
Choice of statistical test stated and explained.
Method clearly, specific and easily replicated by the reader, if desired.
Safety/ ethics concerns addressed, including animal...
Cited: Banas, Timothy. "How to Measure Stomata Density." eHow. N.p., n.d. Web. 13 Sept. 2014. .
- - -. "How to Measure Stomatal Density Read more : http://www.ehow.com/how_5996554_measure-stomatal-density.html Read more : http://www.ehow.com/how_5996554_measure-stomatal-density.html." eHow. N.p., n.d. Web. 13 Sept. 2014. .
Hershey, David. "Re: Does light intensity affect the number of stomata on a leaf and if so, how?" MadSci. N.p., n.d. Web. 14 Sept. 2014. .
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