This manual presents tasks and short references in physics with elements of biology, geography, ecology, which can be used by a physics teacher in lessons and extracurricular activities, as well as by students in preparation for the lesson, when writing a report, for self-development and self-training, to broaden your horizons and for creative work. Based on the short references presented in this manual, schoolchildren learn to illustrate the laws of physics with examples from biology, geography, ecology, etc.