1.
Click on the snail-shaped symbols of the cochlea whenever they appear – you won't get any points, but you can use these in the quiz to get another chance to answer a question you answered incorrectly.
2.
Click on the different headers under "The Ear" to find out about the hearing process.
3.
Click on "Georg von Békésy" to find out more about his Nobel Prize awarded research on the hearing functions.
4.
Choose a quiz level by clicking on "Beginner", "Expert", or "Advanced".
5.
In the upper left corner you can see how many questions you have answered.
Click on the arrow in the right bottom corner to see the next question.
6.
If your answer a question incorrectly, you can click on any of the snail shaped symbols
that you have collected to have another chance to answer the question without losing any points.