“Химический кружок“ - выпуск 10 - “Невидимые чернила“
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![“Химический кружок“ - выпуск 17 - “Физические и химические явления“ [кратко]](https://sun9-17.userapi.com/JuM1XoN-YxmrdvUuasOypO7WDfCNNlIvSgwiMw/CgbnnGW-B-E.jpg)
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![“Химический кружок“ - выпуск 18 - “Разрушительница мифов“ [три агрегатных состояния]](https://sun9-2.userapi.com/bF9BnHYYcyhp-zVGiRhPq0e-c3a72rEj9CkInQ/ZRCS-eQwmG8.jpg)
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