Usage of 'thus2

hello I have a doubt about the usage of thus. So this is how I used it;

"...science studies the way of nature (chemistry, biology, physics, etc.) thus it studies..."

now the problem is do I need to put a semicolon or anything between ) and thus ?

[Anglika]

It is difficult to answer without the whole sentence and its context. For instance, what does "it" after "thus" refer to? And is "studies" the noun or the verb?