The work you present must be your own:
Science (Fair) Outside the White House expects all participants to operate at the highest code of conduct and ethics:
All students who enter projects in the Science (Fair) Outside the White House certify that the research proposed, hypothesis developed, experiments designed and executed, data collected, analysis performed, and conclusions reached represents the novel, unique, and independent contribution of the student.
Plagiarism, of any type and format, is strictly prohibited. For clarity, plagiarism is defined as, “when an author attempts to pass off someone else’s work as his or her own.” (Nature Journal Editorial Policy, 2009). Examples of plagiarism include, but are not limited to:
Copying another person’s work from any resource (i.e., periodical, book, Internet) and submit it as one’s own.
Paraphrasing or using parts of another person’s work (i.e., ideas, written work, diagrams, graphs, charts, images) without properly citing it as a resource.
Duplicate publication, by reusing substantial parts of his or her own published work without providing appropriate references.
Adapted from the Connecticut Science & Engineering Fair Guidelines