Science Questions play online

After your registration you are admitted to the science class where you will have to answer science questions.
Each session of questions (quiz) contains 20 questions about science in general: Physics, chemistry, biology, geology, astronomy...
The quiz ends at the end of the 20 questions or as soon as the hangman drawing is complete. At the end of each quiz a mark is given to you and the average of your last ten marks is calculated to be compared to that of the other students.
The ranking of the top 50 students with the best mark averages is continuously updated so you can evaluate your level. Only students who completed a questionnaire during the last 3 months appear in the ranking.
At the end of each question, do not forget to read the explanation given by the teacher, you will improve your knowledge and thus become a real EXPERT in SCIENCE.