Sharpen your vocabulary and feed the hungry!

Hey everyone, I just caught word of this site:
Free Rice

It's a vocabulary game backed by the World Food Programme! For every answer you get right, 20 grains of rice are donated to feed the world's hungry. So for those of you who like word games--you know who you are--here is a game to try. If you put it in perspective, playing for only a few minutes will provide someone somewhere, who really needs it, with a bowl of rice!
It's suitable for students and adults--Enjoy!!