On May 23, 2023, Stefania Oikonomou (Web2Learn) delivered a workshop on citizen science to Deaf and Hard of Hearing students in Thessaloniki, Greece. Students were first introduced to citizen science through an interactive presentation of the CitSci4All Toolkit. Once equipped with the necessary knowledge and tools, students engaged in their own citizen science action by collecting data of the plant biodiversity in their school yard through the iNaturalist app. The workshop was part of the EU-funded CitSci4All project.