Red is such a pretty color!  Mars is a red planet, and the red color comes from iron oxide!
red is cool or should I say hot :)
It is both cool and hot!  haha!  And it is a primary color in the RGB color model
yeah, red, green and blue
Exactly!  And it is the colour at the end of the visible spectrum of light as well.
jmmm, at the end, I did not know that
Yes, and it is also an important colour in China - it was used to colour early pottery there.