Quiz: Chemical Elements

For a long time it was believed that the world exists only of four elements: earth, water, air and fire. Throughout history it has been changed and more elements have been discovered.
How well is your knowledge about the chemical elements. Do you known the abbreviation for oxygen or gold?
What you already know and where your gaps are, shows you this quiz. The quiz contains all known elements, and information about their properties.
Test your knowledge now!

Game features:
- The game is divided into 8 levels of difficulty.
- Each level contains 15 questions.
- Each question has four possible answers are provided.
- For wrong answer you get 3 seconds penalty.
- Higher level can only be achieved if the lower level has been played less than 45 seconds.

other Functions
- Registration of personal time on the leaderboard .
- Vibration ( On / Off) .
- Sound ( On / Off )
- Time ( On / Off)