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 warranty-voiding DIYer and all around geek. When he's not documenting mods and hacks he's doing his best to make sure a generation of college students graduate knowing they should put their pants on one leg at a time and go on to greatness, just like Bruce Dickinson. 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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