Choose something that you are genuinely interested in and are passionate about.
I did mine on sitting on the fence - quite funny, right!
I Basically set the scene in the first paragraph, making you imagine a blind man crossing the road and the car runs him over and you thought about it but did nothing about it. I then spoke about how it's so common in society that we think of doing something good but then ponder for too log and decide it's too late to do anything and then nothing gets done.
I then gave the example of the Holocaust and how people didn't speak up for what's right and thought oh well, it doesn't concern me. Then brought in Martin Niemollers poem about 'First they came for... and I didn't speak out because I was not a ... and then they came for me and there was no oneeft ro speak out for me'. I spoke about the fact that many ignore the injustices out there in the world and the impact it has etc. And how even when it comes to voting, many people don't yet they complain about who's running the country.
Also spoke about how many people sit on the fence because they don't know enough about a topic to give their views ( esp teens my age, they can't even convelse about controversial topics )
Then I ended with a little rant lol saying we need to wake up and read, listen, observe and aquaint ourselves with the facts so that we can give our views and prevent injustices instead of sitting or fence or waiting for disaster to strike.
It was really informing and was definitely a wake up call to some of my classmates! Got 27/30 for it!
Hope that's helped you and conveyed the level of interest and passion needed in your topic. Be sure to keep it cohesive but also add in your examples, scene setting and literature as appropriate.
Wish I could direct you in person because I'm quite good at speech delivering and debating etc so I could really help you in the presentation part!
Good luck! With the guidance of your teachers and peers, there's no doubt that you'll do great. As long as you present and deliver your speech well ( and know enough about your topic to answer. The follow up questions ) it's a piece of cake 😉😉