Aquinas Divides Speculative Sciences

Different sciences Aquinas would say or analyze reality in different ways according to different the word he would use is different formalities. So you have for example I mean we can just take a very simple example to understand how Aquinas understands the distinction between different modes of inquiry. Think about an orange you know you have an orange here. You can think about this one object which is the orange which we call the material object under different formalities and so on.