It is important for students to give credit to their sources of ideas. Plagiarism is when ideas are not properly attributed to their source. It is easy to avoid plagiarism: write in your own words (so do NOT simply copy/paste; and give credit and a link to the source of the ideas used in the science fair investigation.
To this end, I asked children to include a brief Bibliography, both as the last page of their write-up as well as a second copy glued to the back of their 3-panel display.
At this early intermediate level, I am not overly fussy about getting the format of the bibliography correct: I just want all students to have the practice of including a bibliography.
I have included a document here which shows the three most common sources that need attribution (book, website, person).
Reminder: the write-ups are to be typed, and are due in to me no later than this Friday 12 April 2013.