Brush Twice a Day(I)

Brush Twice a Day (1) There is one thing that I really, really HATE doing. What is it?Brushing my teeth. I just don't see the reason for all this brushing. Mom is always making sure I brush in the morning, and l brush my teeth before bed too. WHY?That's what l want to know. Mom is a science teacher. She likes experiments. She says, " Showing is always better than telling. " So, we make a deal. First, Mom has to prove that it is really important to brush teeth at least twice a day. If she does, I will brush my teeth without any complaining. “ Okay, ” says Mom. " Here is what we need for this experiment. We need a boiled egg. We need a small jar. We need some vinegar. ”

Vinegar is sour and really strong. I think this will be interesting. I can hardly wait to see what Mom is going to do!