Freerice - Feed hungry people!

freerice.com  is a classic website to practise vocabulary. It is a non-profit website run by the United Nations World Food Programme, so every time you win a point, 20 grains of rice go to poor countries. But you can also practise German, French, Italian or Spanish, as well as other subjects, like Arts or Geography.
It is really addictive, but this time addiction isn't harmful!