Why is it that you have to be good at math to study science/engineering

In general, why is it that you have to be good at math to study physics, chemistry in addition to engineering?

As a double major in math and biochem, who has also done physics classes, math is the basis of all of these subjects, which I would say is why being good at math (or being willing to work to be good at math) is essential for doing these subjects.

Physics is a subject that describes the world around us and puts concepts, such as force and light, into something more tangible: Equations. Mathematical equations. Remember Einstein's equation e=mc^2? Ever heard of the heat equation? Math is important in deriving formulas such as these.
Physics is, more or less, is math constricted to reality.

Chemistry, I would say, is less mathematical. But equations and mathematical concepts are still a fundamental basis for the subject - data interpretation, chemical modeling, as you get into higher subjects you tend to see more and more math.

Engineering, with my limited (no) experience, is just applied physics. So you're putting mathematical models into real life situations (i.e. how much force can this bridge withstand if I make it in this shape/give it this many support railings?)

Basic overview, hope it gives some insight.

because they are full of math. infact 75% of each of those topics is all math.

maybe even more with chemistry and physics because of the conversions and stoichiometry