From the Board of studies website:
What is cheating in HSC assessment?
Cheating, or malpractice, is dishonest behaviour by a student that gives them an unfair advantage over others. Most students understand what cheating in an examination means, but there are other types of behaviour that are also considered cheating.
Here are some examples of behaviour considered to be cheating:
copying, buying, stealing or borrowing someone else's work in part or in whole, and presenting it as your own
using material directly from books, journals, CDs or the internet without acknowledging the source
submitting work that contains a large contribution from another person, such as a parent, coach or subject expert, that is not acknowledged
paying someone to write or prepare material that is associated with a task, such as process diaries, logs and journals.
What is plagiarism?
Plagiarism is when you pretend that you have written or created a piece of work that someone else originated. It is cheating, it is dishonest, and it will jeopardise your HSC exam results. The following are common questions about plagiarism.
Q Is it plagiarism if I copy someone else's work exactly and claim it is my own work?
A Definitely yes!
Q Is it plagiarism if I change some of the words or the order of sentences in the passage I am copying?
A Yes. You are using someone else's thoughts and words without acknowledgement.