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Lab Report Writing Guide

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MYP Lab Report Writing Guide
Write an appropriate title for your investigation.
Title
Describe what you are trying to find out in this investigation. Usually one or two sentences are
sufficient if the independent and dependent variables are clear.
Aim
Prompt:
Does changing the ………………………affect …………………………………………….
Hypothesise what the expected the outcome of the investigation will be
Use scientific knowledge and terminology to explain your hypothesis
Hypothesis
Prompt:
I hypothesise that …………………………………………..because…………………………..
Identify your key variables
i) the independent variable which you are changing
ii) the dependent variable which you are measuring or observing
iii) the control variables which you must keep the same.
Variables
You may present this in the form of a table:
Independent variable
Dependent variable
Controlled variable
Describe how you plan to collect sufficient and relevant data.
List all of the materials and equipment (including chemicals) you will use. You may use a table to
show this.
Materials
Make sure that you choose the best materials available for the purpose.
Identify the relevant safety issues. How will you make sure that your investigation is safe?
Safety
Explain how to carry out the investigation, step-by-step. Use numbered steps.
The method must explain how you will be manipulating; measuring and controlling the variables
you listed. Describe how you plan to collect how sufficient and relevant data.
Method
Diagram
You may need to draw a labelled diagram to help show how your materials are set up. In some
simple experiments a diagram may not be needed.
Record your results in a table. Your table will contain raw (directly measured) data and may include
processed (calculated) data such as averages.
Data Collection
Make sure the table has a title and correct headings with units. In most investigations you are
expected to repeat results (trials). Then you can calculate the average.
Your processed data should be presented visually, either as a line graph or sometimes a bar
chart.
Data Processing
Conclusion
You are expected to select the most appropriate type of graph/chart. Give your graph(s) a title.
Make sure that the axes are correctly labelled, including any units. Make your graph large enough
to read clearly. If you data shows a trend, then include a suitable best fit line (trend line). This may
be a straight line or a smooth curve.
Reflect on your data and graph. What do your results show? Does this agree with your original
hypothesis? You are expected to describe your results using correct scientific reasoning.
Evaluation
-You should always criticize your results. All experiments are vulnerable to errors, whether by
equipment or human error. It is important to reflect on the process and results of the experiment.
Identifying possible errors such as: misreading a thermometer or using broken equipment can
seriously alter the results. Finding solutions to fix such errors would provide more accurate results in
the case the experiment was conducted again.
You are expected to reflect carefully on your experiment. The following prompts may help you.
Describe if/how the method enabled you to collect the necessary data. Was your method valid?
The method I chose was valid/not valid because ……………………………………..
I would like to continue / change ……………………………………………………………… next time.
Why is this?
Describe how you could improve or extend your investigation.
If I were going to extend this experiment I would…………………………………………… Why would
you do this?
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