Object: Water colors of blue and yellow which, when mixed, make green.

Good morning, boys and girls. This morning we are going to have an experiment for artists. How many of you like to paint? Oh boy, almost all of you. Well, I have with me today two colors. One of these colors is my very favorite of all colors. Can you guess which one of these is my favorite? [Hold up blue and yellow.] How many say blue? How many say yellow? My favorite is blue, and I love to paint with it. [Put some blue paint on the paper.] Isn't that a pretty color? How many of you know what would happen if I would paint over my blue color with yellow? Do you think it would stay blue? No? Do…