How did your value compare to the accepted value? Calculating percent error is a great way to show this. If your value was off, why was it so far off?

This section should summarize the main findings of the lab. If the purpose was to find a certain value, or see a certain reaction, what did you find? If the lab was an activity, summarize what you learned. If you conducted an actual experiment, collecting and analyzing data, make sure to include the following in your report.

State how the results compared to expectations and why they did or did not match.
For example, how did your value compare to the accepted value? Calculating percent error is a great way to show this.
If your value was off, why was it so far off?
If the lab is qualitative , how did the results compare to logical scientific expectations? It is NOT sufficient to say “the results of this lab were what expected”. You need to say what you expected scientifically and why. Then say why your results matched or did not. If you do not know the value or expectations, look them up and then reference them as you discuss how your results compare.
State ways to minimize error if the experiment could be repeated. This discussion needs to be in the discussed in the conclusion section. You need specific examples for this. It is NOT ok to say “The error could be improved by having better equipment.” Be specific.
State at least three sources of error in the lab.
Sources of error do NOT include errors in calculations. Do not say “human error”.
Error in classified as random or systematic, with explanations.
Find things within the lab that you could not control this time, but that might be able to control if you could repeat the experiment under different conditions or with better equipment.