Within the development of a project on sustainability, we could not miss an activity about our own school. How sustainable are we as an educational community? Are we aware of it? Can we do something to improve our habits? To do this, our students have developed a questionnaire on energy consumption and consumption habits for all teachers and students of the school. With the results (150 answers) they have made some posters that have been placed in the school and that we hope will serve as a reflection and starting point for a change for a better sustainable habits of the whole school.