Mom, What's that stuff?

At this time of year, our weather is somewhat unstable.  We get warm spells and cold ones.  We had a heavy snow on Sunday but today we have a blue clear sky and 46°.  The snow is receding and we get that margin of lawn peeking out.  When our daughter Jill was about 5, she and Lynn took a walk around the neighborhood.  Jill saw that margin and said,"What's that stuff, Mom?"  Lynn said, "That's grass, Honey."  

It had been so long since any grass was visible, that Jill didn't recognize it.