Last week with Lisa the boys learned chromatography.
(the separation of mixtures - in our case colors)
This one was M&M's soaked in a little water to remove the color, then they put the color water droplets on coffee filters, let them get damp and watched the colors run up the filter and separate. (Think green, the blue and yellow separated)
They also used markers, chalk and rubbing alcohol. I didn't get a good "after" picture, but these really turned out well, you could really see the separation of the colors.
I can't remember what they used here to color, but you can see how the colors separate.
(Noble thinks it was food coloring)
(the separation of mixtures - in our case colors)
This one was M&M's soaked in a little water to remove the color, then they put the color water droplets on coffee filters, let them get damp and watched the colors run up the filter and separate. (Think green, the blue and yellow separated)
They also used markers, chalk and rubbing alcohol. I didn't get a good "after" picture, but these really turned out well, you could really see the separation of the colors.
I can't remember what they used here to color, but you can see how the colors separate.
(Noble thinks it was food coloring)
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