What is this?
It's a notebook.
What's this?
It's an eraser.
What's this?
It's a crayon.
What is this?
It's a pencil.
What's this?
It's a ruler.
What is it?
It's a blue teddy bear.
What is it?
It's a monkey. / It's teacher!
What is it?
It's a (yellow) robot.
What color is it?
It's red.
What is it?
It's a rabbit! / It's student!