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Chemistry"History of chemical elements discovery"Age category: age 14-18, students, teachers International Online Chemistry Contest "History of chemical elements discovery" with a quick result. Participants are invited to answer 15 questions with answer options. There is no time limit. Participation in the contest is free, after registration, you can order certificates for the participant and for the teacher. |
Best participants in last month
| Participant | Locality | Score |
| Rick Banerjee |  Kolkata | 13 из 15 |
Last 20 participants
| Participant | Locality | Score |
| Rick Banerjee | Kolkata | 13 из 15 |
| Jha Pranav | Madhubani | 1 из 15 |
| Olga |  Vilnius | 10 из 15 |