Calculation question: Attempt the isostasy question in the 2011 Tripos Part 1A practical exam (it is section 2, parts a-c).
Complete the answer on clean sheets of A4 rather than trying to fit it into the text boxes that come with the exam paper. You can download past tripos papers from the NST Part 1A Earth Sciences page on Moodle, just follow the ‘past exam papers’ link from the navigation pane on the left (or follow this link). Note that the structure of the 1A Earth Sciences exams was different before 2012, read your course guide for more details (or look at the most recent exam papers), but some of the older questions set are often still relevant and useful for revision.
Map exercise: Complete map exercise 2 from the examples booklet.