Did you know? The soil, water and air naturally contain more than 60 radioactive materials?! Le savais-tu? Le sol, l’eau et l’air contiennent naturellement plus de 60 matières radioactives. Learn more about the radiation effects on cells and DNA with this week's Backgrounder #linkinbio . . . #FastFactFriday #STEMed #STEMeducation #Biology #CanEd #ONed #BCed #SaskEd #MBed #PEIed #NLed #NLschools #ABed #CanadianEducator #QCed #NSed #ScienceEd