Update April 2016: This appears to have gone offline. 

JohnnyAppl is a fun online trivia game that is perfect for Earth Day. JohnnyAppl offers a variety of trivia quizzes that you can play anonymously or as a registered user (via Facebook log-in). Similar to Free Rice, the game is supported by banner advertising on the right-hand side of the screen. The revenue from the advertising is used buy and plant trees through the Eden Reforestation Program.

As a player on JohnnyAppl you are credited with helping to plant a tree after correctly answering 150 questions. Don’t worry, you don’t have to answer all of them in one session. JohnnyAppl has trivia bunches of quizzes in categories including geography, vocabulary, science, and technology. After answering ten questions in a quiz you are given a score that shows you how you did compared to others taking the same quiz.

Applications for Education
JohnnyAppl is a site, like Free Rice, that I would like to on my classroom blog as a fun and somewhat educational resource for students to use during some free time if they finish a lesson early or are simply looking for something fun to do at home.

H/T to CNET.