Sunday, July 1, 2012
Coffee Filter Chromatography - Sun-Catcher Follow-up
If our post yesterday inspired you to make a foam plate and coffee filter sun-catcher today...
...then let me encourage you not to miss out on the opportunity for some quick chromatographic fun with the left overs.
Let children mix the bowls of watered down food coloring together - red and yellow make orange, orange and blue and green make brown, and drops of brown food coloring on a coffee filter...
...make rainbows of color as the blue rushes out first, followed by the yellow (with a slight blending into green between them) and then the red (again with a hint of orange at the edges). The colors separate almost instantly, making it an ideal art/science experience for younger children, and a fantastic boredom buster, I might add. Like baking soda and vinegar eruptions, coffee filter chromatography never seems to get old.
It's great to be a homeschooler.
Linked with Science Sunday at Adventure's in Mommydom.