How-To Geek

Craft a Drinkable Density Column

Earlier this month we shared a clever 9-layer density column demonstration you’d most certainly not want to drink. This smaller demonstration, however, is a delicious column of fruit flavors.

The secret sauce? In the previous experiment we shared the secret was using fluids with naturally varying densities (such as lamp oil and vegetable oil); in this experiment you’ll be relying on varying amounts of sugar in each layer to change the density of the water and keep them separate (and edible). You’ll need some Skittles, a few drinking glasses, water, and for best effect, a tall and narrow glass or graduated cylinder.

Hit up the link below for the full details on the experiment and tips on how to carefully layer the liquids.

Make a Drinkable Rainbow in a Glass [i09]

Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). You can follow him on if you'd like.

  • Published 10/22/12

Comments (1)

  1. Iszi

    Easier way to make a rainbow drink: Jell-O shots! ;-)

    Still, a cool demonstration here. For a more enjoyable experiment/experience, I wonder if this might work with bases other than water? For example:

    1. Make a pitcher of lemonade, but without sugar.
    2. Pour equal portions of lemonade into several small glasses.
    3. Add a different color food coloring to each glass.
    4. Add different amounts of sugar to each glass.
    5. Pour small glasses carefully into a larger glass, one at a time, starting with the one that has the most sugar and working toward the least.

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