Here is my suggestion for evaluation (with/without oral)

Evaluation of student performance during project period (planning, work habit, independence, experimental work, programming).  20/25 points
Report. 70/75 points:
   Structure of report 5
   Appearance of report (including spelling, figures, tables, appendix) 5
   Introduction 5
   Theory  10
   Results 25
   Discussion 10/15
   Summary/conclusion 5
   Usefulness of final results 5
Oral presentation 10/0


Of course, some students may not follow this structure, and the emphasis on the various part may vary.
Thus, one may change the weighting, for example, Introduction and theory may have a higher weight in some cases.


Sum: 100/100