To start, Free Rice is a site that asks you questions, on various subjects, which donates rice to the United Nations World Food Programme for each question answered correctly.
How did I find out about it?
In third grade, my teacher showed our class this website, and we would answer the questions on the smart board.
Features
The subjects that your questions can be on are, humanities, English, math, chemistry, language, geography, science, and test prep.
You can see people's scores, and look at the top scores, and totals of how much rice there was donated in different time periods. Looking at one of the pages where it shows you how much rice was donated, it says it was started back in 2007.
My experiences
I don’t know my highest amount of rice donated, but one of my recent scores was around 600 grains of rice. Even though that might sound like a lot, look at this picture of one hundred grains of rice, you might change your mind.
I enjoy going on this website and answering questions to donate rice, because I know it is all going to a good cause.
I like answering the questions, because if you get a certain amount of questions answered correctly, you go up one level, and the levels get harder as they go up, and I find that motivating.
Conclusion
In conclusion, I recommend this site to anyone who wants to learn about different subjects, and do something good for the world at the same time.