Is Your Blue Really Blue? [Metamerism]

The blue king crab and the red king crab live in the same range but never in the same region. The third lesson plan in the series of five focuses on the blue king crab and the impact the changes in water temperature is having on its...

It turns out blue is not just for the Smurfs! Introduce young geneticists to the Fugate family, known throughout Kentucky for their unusual skin tone. A two-day lesson from K20 explores dominant and recessive traits through partner...

Is your smartphone really doing its best work when it comes to color? The narrator describes technology's lazy approach to recreating colors in an insightful video. Science scholars discover how digital cameras store images, and why the...

Why so blue? As it turns out, very few things in nature only reflect blue light! A short video from a comprehensive science playlist highlights the beautiful blues of butterflies, birds, and human eyes. The narrator shows how adaptations...

Air is clear, so why do we see the sky as blue? The video explains the way light waves travel through the air and the result of our perceptions. It uses simple diagrams and illustrations to reinforce the variety of colors present versus...

Students examine color perception and how it relates to metamerism.  For this color lesson students complete a lab activity that shows them the three basic components of color perception. 

The history of our understanding of the center of the universe is explored through this film. The ideas of Aristotle, Copernicus, Bruno, Descartes, and Herschel are included, as well as the new discoveries that have helped the theories...

Ever find yourself looking at a clear blue sky and notice something that seems to be floating across your eye? Well, you're not alone. Watch this short video to find out exactly what causes this and other common visual phenomenon.

Light travels fast... really fast. But that doesn't mean it moves instantly from its source to whatever object it hits. After watching this video students will understand that once generated in the sun's core, light takes thousands of...

Use a container full of water as a prism and show that as light is bent, the individual colors from different wavelengths become visible. This explains why the sky appears to be blue midday, and why as the sun nears the horizon, it looks...