A week or so ago, Marie over at Make and Takes (link on the side) had a great idea that she does with her kids to teach them about mixing colors -- adding food coloring to milk. Well, we did that yesterday, and not only did it fascinate the kids, Tony stuck around for our "science lesson," too! I tinted just three cups using the primary colors, then had the kids guess what color they'd get if they poured a couple colors into another glass. I'm not sure who had the most fun....the kids, Tony, or me...in not having to clean up after this lesson (they drank it all!).