. . . green glue! We decorated letter G's with green glue. To make, just add some food coloring to a bottle of liquid glue.
. . . green! We tried mixing different things that were blue and yellow. Blue and yellow food coloring, blue and yellow paint, blue and yellow see through plastic pieces, blue and yellow play dough, etc. The kids guessed what color it would make each time before we mixed the things together. Then we made these Venn diagrams.