My favorite color is red.
Red is at the end of the spectrum of light, its with orange and opposite of violet.
I didn't know that. What else do you know about red?
It's actually a primary color for the RGB and CMYK color model.
I learned about primary colors in school when I was little.
Well, the reason that Mars is red is because of the iron oxide on it. That's pretty cool!
I wish we could travel to Mars.
Me too! Actually, red pigment is one of the first colors that was used way back in prehistoric times.