Grass
Paint
Using fresh grass cuttings take a paper plate and some recycled paper
and place the grass onto the plate and the paper over the grass. Then
have the students step and twist, careful not to rip the paper. The
paper will turn green. Explain to students that this green paint is
really chlorophyll and that it is inside the grass but when we use
friction like rubbing the paper or sliding to catch a ball with our jeans
on, the chlorophyll comes out of the grass. By grinding up the grass
Fernando was able to create his green paint.
Adapted from: http://ecochildsplay.com/2009/01/21/science-andart-with-kids-green-grass-paint/