"We put peanut butter in a bowl, and put syrup in. And then mixed it. But then we put in soap and food coloring, red and blue, that's what the ingredients said, so . . . then Mommy mixed it up to make red. Then you put it in your mouth and drool it out and that makes blood! That's how you make fake blood!" We found a fun science project for today :-) Picture of Robin with plastic fangs and fake blood to come.