4. Part 1 – The Scientific Report
Must be
presented in the sections listed in your handout
Written in past tense
Written in third person
Presented using accurate scientific terminology

5. Part 1 – The Scientific Report
Abstract Leave till last but put first! Summarise everything. e.g. This investigation’s aim was to investigate the effect of hydrogen peroxide concentration on the time it took for biological catalase to breakdown the hydrogen peroxide. To carry out this investigation the volume of oxygen produced by decomposing hydrogen peroxide was collected in 2 minutes at different concentrations of hydrogen peroxide. It was hypothesised that as catalase is an enzyme it’s action would be faster if it’s substrate concentration (the hydrogen peroxide) was greater due to an increase in more successful collisions between the catalase and the hydrogen peroxide, and therefore more oxygen would be collected in two minutes. The results supported the hypothesis with an increase in the volume of oxygen collected as the substrate concentration increased. There was little variation between repeats showing a reliability in the results and whilst there were some limitations with method and equipment which may have affected the accuracy they do not have seem to have negatively impacted the results.

6. Part 1 – The Scientific Report
Introduction
Give the relationship between hydrogen peroxide and catalase
State what you are trying to investigate and justify your choice
State your hypothesis
You can reuse some of your work from Assignment A here

7. Part 1 – The Scientific Report
Method
Equipment list – sizes and numbers of pieces of equipment
Step by step
Results
Table of your results
Graph
Standard Deviation
You can reuse some of your work from Assignment B
You can reuse some of your work from Assignment C

8. Part 1 – The Scientific Report
Accuracy – Pass and Merit
How did you ensure accuracy?
Choices in your method
Sizes of equipment
You can reuse some of your work from Assignment C here

9. Part 1 – The Scientific Report
Discussion – pass and Merit
Comments on your findings
What do the results show? What is the relationship between the two variables?
Include a copy of your graph/refer to earlier diagram of the graph with a brief description of what it shows.
Compare your findings to any published secondary data, do they show similar patterns or not (you do not need to include the data, tables or graphs here just reference it e.g. ‘the results from a similar investigation by Izen, show the same trend…’ Then add the reference to your bibliography at the end.)
Comments on reliability (can be used from assignment C)
Comments on validity (can be used from assignment C)

10. Part 1 – The Scientific Report
Conclusion
General statement of what your investigation found out
Does it support your hypothesis? Restate your hypothesis and say why your results do/do not support it.
Does your secondary researched data support your hypothesis as well?
Propose an area for further study.

11. Part 1 – The Scientific Report
Conclusion – further study
Same independent variable but using a different method to see if the results would draw similar conclusions.
Paper disc method
Collect oxygen gas
Collect gas using a gas syringe rather than upturned measuring cylinder
Same variables but with a different source of catalase to see if the results would draw similar conclusions Yeast/liver/beetroot/other sources
Same method (volume of oxygen or paper disc method) but with a different choice of independent variable to further study how other factors affect the breakdown of hydrogen peroxide.

12. Part 1 – The Scientific Report
Conclusion – further study
Setting out your ideas for further study:
State the purpose of the further research
State the independent variable (even if it is the same one)
State the dependent variable (even if it is the same one)
State some control variables with values.

13. Part 2 – Evaluation of Findings (distinction)