Color Pigments

Objects contain pigments that selectively absorb a wavelength of light, and our eyes only observe a very small range of these wavelengths. Scholars apply these two facts to three different activities. They identify the pigment in an unknown sample based on the color participants observe when two different lights illuminate it. Then, they determine the color of a shirt given the pigments it contains and the light under which they view it. Finally, they inform a printer which pigments to use to have something appear with a variety of different colors.

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CCSS: Adaptable
Instructional Ideas

  • Visit a printing shop and discuss how they create a variety of colors
Classroom Considerations

  • Relies on prior understanding of light, pigment, reflection, and color perception
  • Interactive works on any available technology with an Internet connection
Pros

  • Applies to real science and art applications
  • Offers immediate feedback and extra support as necessary
  • Links to related lessons, activities, and labs
Cons

  • None