Texture painting leads to color mixing

Binyamin was painting with the color Blue.

 Zev was painting with the color Yellow.

Then Zev asked for some Blue paint.

As he started painting the 'blue' he was painting with did not look like the blue on Binyamin's art! It was more like GREEN!

Morah Esther:" But I didn't put any green paint on there for you!"

Zev: "That's why if you mix Yellow and Blue together you get green. My Mom told me."

 Zev: "Its looking greener and greener!"

When Zev was done painting and ready to wash up he commented, "That was really cool!"