We are students of the High School Galileo Ferraris from Turin and this year (2018-2019) we are attending our fifth and last year. The project was born to take part at the Giornata della Scienza, an challenging scientific contest organised by prof. Andrea Doveri and prof. Annalisa Gratteri. This contest offers the opportunity to the students to start during all the school term their own scientific research, that they have to present in April to the other students and people coming to visit the school.