We can also use color directly in science to learn about the universe. The activities for this topic explore color in three different ways. Made from Dots . Many printed color pictures are not solid color at all, but rather a sea of dots in three or four different colors. You will explore how the process works in this activity.
Funny things happen when colored lights cast shadows.
You will use a simulation of such lights to see how this works. Stellar Spectra . Astronomers can look at starlight and tell what the star is made of. You will look at light, separated into a spectrum, and figure out the elements from the spectral lines you see.