Science is about observing our world, making predictions and then seeing if we are correct. What a wonderful and beautiful method for understanding our world. Much preferable than relying on an ancient book and a mystical bearded man in the sky.
Mathematics is the key to science. Understanding mathematics gives you the tools to probe scientific models and to make predictions. It’s also how we know what we know and allows us to decide what works. Bit by bit our models of the natural world change and improve and feed on the evidence presented by our research.
Be good at mathematics, or at least be hard working. It can be rote learnt but it’s much better to have the flair and natural ability. This system is rather hard on those who can’t follow the maths, but there are plenty of people willing to popularise science in TV shows and books. There’s just not an excuse for trying, or trying to find out.
I advise my students to listen carefully the moment they decide to take no more mathematics courses. They might be able to hear the sound of closing doors.