It's a pen.
What's that?
What's this?
It's a book.
What color is it?
It's orange.
What's this?
It's a marker.
What's that?
It's a ruler.
What color is it? (ruler)
It's a blue ruler.
What color is it?
It's red.
It's a pencil.
What's this?
What color is it?
It's green.
It's pink.
What color is it?
It's yellow.
What color is it?
What's this?
It's an eraser.