Android Giveaway of the Day - Recycle me

It is a game designed primarily for children, proposing guess the color corresponding to different types of trash container can usually find. For this you drag and drop it on the trash container.

Green: glass.
Yellow: plastic and metal packaging containers.
Blue: paper and cardboard.
Grey: other waste.

Beware of failures and do it as quickly as possible.
You have 30 seconds to do your best!
But you can repeat as many times as you want;)