There are usually a variety of modules - lectures: final exam that accounts for 100% of your grade, and sometimes (possibly obligatory) regular homework - pra

There are usually a variety of modules - lectures: final exam that accounts for 100% of your grade, and sometimes (possibly obligatory) regular homework - practical courses / labs: how grades are assigned vary, sometimes this will be a "do a project in a team" kind of assignment, sometimes it's experiments where you are expected to write one or more reports - seminars: you'll be assigned a topic (usually some recent, narrow scientific result, no wildcard giant topics here) and expected to write a report on it & give a presentation The exact mixture depends on your course of study.