Doing languages for my science project.?

Yes acoustics is interesting, but...it is hard to show on paper and difficult to display amid the bustle of a science fair. Technical visual aids certainly are incisive, but preponderates in those who are intimidated by x vs y. Nevertheless, to go forward in a new way with this is what is holding up human progress! get to it, kid. Ha

I hope you can have fun with your project, get an A, and learn more than just fun and A.

People have been speaking for a million or so years in similar capacities, but writing is pretty much new over the last 8000 years, and still is a mystical experience in taking it to extremes. One can waste an enormous amount of time and be brilliant from such foolishness. One can ignore it almost completely and still function haphazardously in society. One can connive with it and torment themselves with disbelief. The reasons any would do either of these cannot be attributed to malaise or affliction only. We are naturally curious and defiant creatures, and if our creative powers are met with interest to surpass impetus, that ball shall roll.

Clearly, the linguist must focus on communication between peoples as first and foremost duty, and not growing an adult into a child. So deaf and dumb both are transcended with an intuitive regard for a method and process that is second nature in speech and verbal forensics. Get a lot of sources for your project and create a rambling mash of what fascinates you, unless getting a B is not tolerable.

There are few occasions in life for this kind of fortitude to be rewarded in society, yet all hinges in its balance.

For a science project, I would recommend looking more into phonetics - the acoustic aspects of language. You can find a lot of cool images, e.g., spectrograms. You can approach it with "We can all hear the difference between a [p] sound and a [b] sound, but how is this represented visually, and what does this image tell us about their acoustic properties?"