Color Topic

Demonstrates additive color mixing using red, green, and blue floodlights. Students observe that overlapping primary-colored lights produce secondary colors (cyan, magenta, yellow) and white, contrasting with the subtractive mixing they …

Students observe that light travels in straight lines by blocking one of two colored light sources and predicting the resulting shadow colors. The demo builds from simple ray tracing to …

Tri-color LEDs that appear white when stationary reveal separated red, green, and blue pulses when swung rapidly through the air. Students see that white light can be synthesized from three …

Demonstrates dispersion of white light through a prism, showing that refractive index depends on wavelength. Students observe the continuous visible spectrum produced when shorter wavelengths (violet) refract more than longer …

Three combinable prisms of different materials demonstrate how chromatic aberration can be corrected. The smallest and largest prisms combined produce deflection without dispersion (achromatic prism). The two smallest combined produce …

Demonstrates Rayleigh scattering using a colloidal suspension in water. As particle concentration increases, short wavelengths scatter out of the beam (water turns blue) while the transmitted light shifts from white …