A free program for Android, by Scholarr.
Are you a science buff? Or, do you just want to learn something new? Science Quiz Master is a free, educational, and entertaining app where you can learn the most interesting scientific facts. It’s like having a personal science tutor, except that you can take as many quizzes as you want. With thousands of questions, you’ll learn more about science than you ever expected.
How to play?
The game is easy to play. Simply select your preferred topic and start answering questions. If you find yourself stuck on a question, don't worry! Hints are available to help you.
You can also customize your quizzes by selecting the topics you want to be quizzed on. And for a bit of friendly competition, compare your results with other science buffs and try to rise up the leaderboard.