QuarkNet Cymru builds on existing STEM programmes linked with HiSPARC and QuarkNet and a programme to pilot the use of cosmic ray detectors in schools across South Wales. Since January 2016, the project has tried to enthuse secondary school students in STEM activities through engagement in real hands-on astrophysics experiments — measuring cosmic rays using detectors based in schools. Equipment is available for loan to those schools that need A level particle physics laboratory equipment. A website will eventually act as a repository of the resources for using the detectors in the classroom, and as a collaborative learning space where schools can upload their data and work together to analyse their results.