The directions were easy to follow, and the kids were able to do almost all of the measuring, mixing, and pouring themselves.
Zhara and Winnie mixed the colors. Then we incorporated the colors into the water and plaster mixture we made, and filled molds with our concoction.
Angus carried the molds to the cabinet for drying. He was a little nervous of dropping it -- note his eyes.
Then, the next day, we got to use our own homemade sidewalk chalk. Awesome science project!