The competition starts in the first days of June and will last until the end of the summer vacation. To enter the contest, just clickpart on the next page: https://mathematics.live/pl/konkurs/mistrz-chemii-i-fizyki
The competition starts in the first days of June and will last until the end of the summer vacation. To enter the contest, just clickpart on the next page: https://mathematics.live/pl/konkurs/mistrz-chemii-i-fizyki