Go abroad for a while? An excellent idea!
It will bring you a lot in terms of new friends, expansion of your network, multi-lingualism and it looks good on your résumé. An exchange is usually for one semester (5 months), but can last for a full academic year at the longest.
Exchange or Traineeship
If you want to go abroad to follow courses then you will go on 'exchange'. A bilateral agreement is needed between the university of your choice and Utrecht University or the Science faculty. If you want to do a research project or internship it is called ‘traineeship'. For a traineeship a bilateral agreement is not necessary. Please note that the application procedures for stay and traineeship are different.