Do you know who Mr. Yuk is? We hope so! He's a very good friend who reminds you that some things you might find in your house, school, or other places could make you very sick. How does he do his job? Well, when you eat something bad, have you ever made a face like Mr. Yuk's? If so, then you can see why his "yukky" face will remind you to be careful not to touch, eat, or drink things that will ma