Chemistry lesson Chemistry lesson Kasia Bases and Acids - fun stuff Categories: photos Tags: #boatschooling #homeschooling Details iPhone SE (2nd generation) iPhone SE (2nd generation) back camera 3.99mm f/1.8 4mm / ƒ/1.8 / 1/121s / ISO 32 Created 23/09/2020 Uploaded 26/05/2021