Great! In addition, the planet Mars gets its red color from iron oxide.
Well, the reason that Mars is red is because of the iron oxide on it. That's pretty cool!
My favorite color is red. Red is at the end of the spectrum of light. It's 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.
Iron oxide also gives the red color to the planet Mars.