...and the grass keeps growing...

So today was the big reveal.  We have been watching our grass grow on the windowsill for a week or so.  It's gotten quite high.  The children have decided that the grass in the clear container has grown taller because it was able to get more sunlight.

Today we uncovered the grass that we had hidden under a box in the bathroom.  The grass received no light.  Most of the children predicted that the grass would not grow or if it did, it would grow poorly.  Much to our surprise, when we uncovered the box, we noticed that the grass had indeed grown, but it was YELLOW!  Pretty cool, huh?

The children decided that the sun caused the grass to be green so now they have the yellow grass in the window to see if the addition of sunlight will turn it green.  What do you think?