Heya Faizaa, anyone can become a scientist. All you have to be is curious about the world around you. If you want to have a job in science, you normally have to do some sciences at a-level and then a degree. After that you have the choice, you could go and do a PhD (like I did) or you can go and get a science job, like industry.
Faizaa, yes, all you need is curiosity and a bit of dedication. That will take you as far as you want to go. Qualifications help you get further up the career ladder, and you need at least some good GCSE’s to start with.