First, create an outline. Then, start by filling in the sections with on-hand information, like your introduction, literature review, design analysis, and methodology. If your experiment has concluded, add the results and write the analysis, conclusion, and recommendations. Then, create an abstract for your report. After this, fill in the gaps such as the table of contents, lists, references, appendices, and acknowledgements. Finally, proofread your report a couple of times before publishing or submitting it.