Hello! I have a question, I'm not too sure if it's already been asked yet!
I'm currently studying preliminary legal studies, and the question I can't seem to understand is:
What is the difference between the division of powers and the seperation of powers?
Thanks again! Appreciate it! 
Hey!
So the division of powers is the way legislative power is divided between the Australian (Commonwealth or Federal) governments and the state governments. So the Commonwealth Government has
exclusive powers which are listed under Section 52 of the Constitution. The state governments have
residual powers and the power held by both the state and Commonwealth government are known as
concurrent powers and are defined by Section 51 of the Constitution.
However, when the state and Commonwealth government make a law about the same thing, the Commonwealth government always override. Except there are some exceptions which are found under Section 109 of the Constitution.
On the other hand, the separation of powers is how powers and responsibilities are divided among different branches. So you have the Legislature who is responsible for making statute laws. The Executive administer the laws and put them into action. Lastly, the judiciary interprets the law (make judgements). Remember that each of these branches don't exist in pure form as some people in the Legislature may also be in the Executive, etc.
If you have trouble remembering which is which, the best way I found is took the 'P' in se
paration of powers and I now always think of that as people (so referring to the different people involved).
Hope this helps!