Reports are concise documents that outline a particular field of research or study and resulting findings.
There are many different types of reports - research, business, scientific, lab etc.
Check with your teacher to see if they have specific headings or content that should be included in your report.
Suggested headings could be:
Table of contents
Discussion or body
Reference: Queensland University of Technology, 2014, Writing a report, Queensland University of Technology, viewed 15th January 2015, http://www.citewrite.qut.edu.au/write/report.jsp