First, consider the rubric or criteria by which your project will be judged and use that to guide your choice of topics.
If I were trying to engage my audience, which is a major part of a science fair, keep in mind the interests of your fellow students. What would be engaging to your peers? Engaging others can be done in many ways, but here are a few ideas:
- Identify a problem that was previously unknown to your audience.
- Share a new perspective on a well known problem.
- Make a personal connection between your audience and a problem you've presented.
In each of these cases, you are working with a problem. Each approach to the project should then focus on a potential solution. Volcanoes are not interesting as much as considering the problem of volcanic eruptions and your solution to the carbon dioxide load introduced to the atmosphere.
A great idea for a high school science fair would be to allow students from every different grade to co-operate on one project. This way students who are in higher grades that have forgotten certain details from a class that was took in their earlier years will be remembered by those students who are taking those classes. Also those in lower classes will be able to learn and grow from those students in a higher grade. Something like this sounds like a project that will not only help in science but personal growth within the teenagers.
High school science fairs are a great way to get students involved in science without having to sit in a classroom and listen to lectures all day long. It truly gives them the opportunity to showcase their passion for science (if they have it) or perhaps discover a new liking towards science if they didn't have one before. I agree with what kuprus05 says in the fact that you should first check over your rubric/criteria before finding a project you like and then not being able to do it. Once that is completed, I suggest finding a part of science that you enjoy and doing a project from that category. For example:
- If you enjoy geology, you could do a project involving soil and erosion, fossil movement, stalagmites and stalactites, etc
- If you enjoy more social sciences, you could do projects involving physical activities and happiness, social media and whether or not people are lonely when they spend a lot of time on it, etc
- If you enjoy astronomy, you could do a project on eclipses, stars, constellations, planets, etc
As you can see, there are many, many different projects one can choose from. I definitely suggest choosing something you enjoy and really getting into it. You will learn a lot more if you are having fun at the same time. If you are looking for more ideas I suggest taking a look at the link posted below.
Hope this helps!
Most science fair projects consist of the same things, such as a volcano. We don't want a volcano, we want something that is innovative, and if not, really interesting. Typically, you should choose a topic that you are interested in whether that is art, technology, physics, biology, it can be pure science or applied to science. Also, visually appealing projects are always fun! Last year I explained the evolution of Dry Ice, and demonstrated it.
Although, there are always more technically difficult projects. A project with computer science is always interesting and different, since not most consider it a "science". For example, you could explore computer effects on the environment.
The most innovative and impressive projects usually win. Although, its not about winning, remember its a science fair. Its to celebrate the sciences, win or lose, just have fun with it, but make sure to learn!