Henry Scott wanted to know what the dirtiest thing in his house was. After a little experimentation, he shared the answer with his classmates: his sister’s foot.
Henry, a fourth-grader at Pioneer Elementary, did a scientific experiment as part of the school’s science fair by growing bacteria in petri dishes from swabs taken from a toothbrush, toilet seat, pillowcase, raw chicken, Playstation controller, cell phone and, of course, some feet.
Henry’s foot was also part…