The students and tutor tutor of the INS Vila de Gracia, winner of the Barcelona Dades Obertes Challenge Second edition_2019 and the students of the IES Juan Manuel Zafra, one of the finalist centers of the same edition, were on Saturday October 26 in the ABC Space of Science within the framework of the 13th Science Festival. Again, we could enjoy the explanation of the interesting work done, on gentrification and immigration respectively that already defended on the final act. However, there was a space where the rest of the works submitted to the contest were shown. We thank everyone for their participation and encourage everyone to participate in the Third edition_2020!