What is UCAS?
UCAS stands for the Universities and Colleges Admissions Service. It is the centralised service that all students use to apply to university. That means that anyone who wants to study an undergraduate degree in the UK has to apply through UCAS.
You can use the UCAS website to research universities, the courses they offer and the grades you need to be predicted to achieve to apply.
Once you've chosen what you want to study, and which universities you want to apply for, then you make one application online, through UCAS. Then the service takes your proposal to each of the universities and then they let you know whether you have been offered a place and what the conditions of that place are.
The final stage occurs when you have achieved your A level results and you find out through UCAS if your offer of a place at a particular university has been confirmed.