Donate grains of rice by playing an online environmental quiz. This game combines a traditional quiz game with the added incentive of helping end world hunger. Free Rice is a browser-based quiz game with topics ranging from humanities to math and science. Each correct answer results in the donation of ten grains of rice via the World Food Programme and the player then receives a more difficult question. An incorrect answer leads to an easier question. The web site aims to increase public awareness about the growing world hunger problem and related environmental issues, and provides opportunities to become involved.