Advice on Abstracts
Maybe the best advice we can give is write the abstract before you construct your project board. Try not to be wordy and go into more detail than necessary. Possibly a good way to start your abstract by talking about your project, this can be done to a parent or friend, or all by yourself, talking to the walls of your bedroom. Try to time yourself to say one or two minutes, and in that short time explain your project. Then write down what you said, count the words and see if you have no more than 250 words. From this pint on, maybe several times during the construction of your project board, you will modify that abstract.
One misconception, sometimes by a parent or teacher, is that you cannot have help with your abstract. Nonsense. Graduate students working on their Ph.D. or other advanced degrees have advisers, and professional writers have editors review their work. So make sure that everyone you would like to have an opinion from reviews your abstract. You must write it, but do get help in reviewing and editing. Have someone who knows something about the category you are in review it. He or she might ask, "well how did you obtain your data", oops, you left out something about your procedures, so fix it.
Judging is very difficult. There is no one item that will raise a project to the top. There is no one item that will lower a project, but make sure your abstract is going to influence toward the top.
Be sure to read the links on Abstracts: