Color Change Chemistry Projects – Chemical Reactions and More

Color Change Chemistry Projects
Color change chemistry projects include colorful chemical reactions and other processes.

Color change chemistry projects are among the most interesting and entertaining science experiments. Color change chemical reactions visually indicate chemical changes in matter. They illustrate pH changes, acid-base reactions, oxidation-reduction, and other key chemistry concepts. Other projects change color due to conformation changes, light emission, and simply mixing colors. There’s a color change chemistry project perfect for any occasion.

Here is a collection of color change projects.

Is Color Change a Chemical Change?

Color change often indicates a chemical change or chemical reaction, but sometimes colors change without altering the composition of a substance. For example, mixing blue and yellow food coloring makes a green liquid, but no chemical change occurs.

Color Change Chemical Reactions

These reactions are chemical changes. They include acid-base reactions, redox reactions, and precipitate formation.

Holiday Color Change Chemistry Projects

These chemical reactions involve colors associated with holidays and other events.

Colored Fire

Combustion is a chemical reaction and thus an example of a chemical change. However, the reason flames change color in these projects is because of light emission. Heating colorants excites their electrons. Photons released as electrons return to more stable energy states cause the color change.

More Color Change Chemistry Projects

These colorful chemistry projects don’t necessarily involve chemical reactions. Other reasons for color changes include alterations in molecule shape, mixing colors, and scattering light.

  • Rainbow Roses: Turn a white rose into a rainbow use. With a little know-how, change black roses into rainbows, too.
  • Copper, Silver, and Gold Pennies: Change the chemical composition of coins and watch their colors change, too.
  • Change Egg Yolk Color: Color egg whites using food coloring. Coloring egg yolks is trickier because the yolks are oil-based rather than water-based.
  • Change Urine Color: It’s easy to change urine color. You may have done it accidentally once or twice!
  • Make Rainbow Paper: Coat paper with a thin film that shows the colors of the rainbow.
  • Thermal Nail Polish: Thermal nail polish changes color according to temperature. See how it works and make it yourself.