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How to Make Bubble Print Pictures

Make Bubble Print Pictures

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Pop colored bubbles onto paper to make bubble prints.

Pop colored bubbles onto paper to make bubble prints.

Anne Helmenstine Bubble prints are permanent records of your bubbles.

Bubble prints are pretty and permanent records of your bubbles.

Anne Helmenstine

Bubble prints are like fingerprints, except made with bubbles. You can make bubble prints and learn about how bubbles are shaped and how pigments combine to make different colors.

Bubble Print Materials

Bubble prints are made by coloring bubble solution, blowing bubbles, and pressing paper onto the bubbles. You need brightly-colored bubbles in order to get a good picture. Tempera paint powder works really well, but you can substitute other water-soluble paints if you like.

  • bubble solution (buy it or make your own)
  • tempera paint powder
  • paper
  • straws
  • small plates
Make Colored Bubble Solution
  1. Pour a little bubble solution onto the bottom of a plate.
  2. Stir in paint powder until you have a thick paint. You want the thickest paint you can get, yet still be able to make bubbles using it.
If you get the three primary colors of tempera paint then you can mix them in order to make other colors. You can add black or white paint, too.

Primary Colors

Blue
Red
Yellow

Secondary Colors - Made by mixing two primary colors together.

Green = Blue + Yellow
Orange = Yellow + Red
Purple = Red + Blue

Make Bubble Prints

  1. Put the straw into the paint and blow bubbles. It may help to tilt the dish slightly. You can experiment with a few large bubbles versus many small bubbles.
  2. Touch the bubbles with a sheet of paper. Don't press the paper down into the paint - just catch the impressions of the bubbles.
  3. You can switch between colors. For multicolored bubbles, add two colors together but don't mix them. Blow bubbles into the un-mixed paints.
Learn About Bubbles

Bubbles consist of a thin film of soapy water filled with air. When you blow a bubble, the film expands outward. The forces acting between the molecules of the bubble cause it to form the shape that encloses the most volume with the least surface area -- a sphere. Look at the bubble prints that you have made. When bubbles stack, do they remain spheres? No, when two bubbles meet, they will merge walls to minimize their surface area. If bubbles that are the same size meet, then the wall that separates them will be flat. If bubbles that are different sizes meet, then the smaller bubble will bulge into the large bubble. Bubbles meet to form walls at an angle of 120°. If enough bubbles meet, the cells will form hexagons. You can see this structure in the images you make in this project.

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