This study aims to draw attention to data literacy, which is considered an important skill of the 21st century, and to provide an example activity that would incorporate it into chemistry education. The activity was designed using real data of Robert Boyle's experiment. The activity aims to examine Boyle's data in such a way to support data literacy and understand Boyle's law. The activity was carried out with sixteen 11th grade students at an Anatolian High School connected to the Ministry of National Education in a city located in the middle of Türkiye during the 2021-2022 academic year. The students voluntarily took part in the study, which was designed according to the qualitative research method. Data was collected through a written opinion form. The results indicate that the students think that the activity used in this study is effective both in helping them understand the topic and also in supporting data literacy.