We want to modify and renew the instruction of natural sciences at our schools, so that it may become more useful and engaging for the students. We want to nurture a keen interest on science and technology among our students and we want to direct it on a course incorporating social responsibility and awareness of the importance of self-initiative. Environmental issues and sustainable development will serve both as topics to ground the theoretical knowledge in practical situations as well as themes to motivate reflection and responsibility and incite activity. Through the project we want to also raise the awareness in general public and we want the students to be the motors of these activities. There has been an active cooperation with a small Belgian school Sint-Calasanzinstituut going on for quite some years. We have decided to use the existing collaboration and improve it, develop it and build on it. Therefore we have decided to try to reach all of our goals together in this Erasmus+ project. We have prepared a substantive work plan to incorporate new activities into our cooperation. The mere international nature of the project offers significant advantages. We will be able to reflect our own situation with more distance and objectivity, we will be able to learn from one another and arrive at new findings together, and along the way both the professors and the students will gain new skills in the field of communication and project management. The forms of cooperation include short term motilities for smaller groups of students with more interest in the scientific field, the preparation, testing and publication of different learning materials, extensive amounts of communication between different target groups and vast array of promotional activities. Through the course of the project we would like to attain new knowledge and competences especially in the use of new technological possibilities one among which is the use of ICT in science lab and ordinary lessons. Practically all of the activities directly or indirectly involve the entire school populations and will be evaluated throughout the course of the project accordingly. Both schools will maintain their other activities in the field of science and try to incorporate them into this project in order to disseminate the findings as well as share good practices with each other. The extracurricular activities that stand to gain substantial momentum will try to popularise their events and they will develop new content. The listed short-term impacts that are quite measurable are well defined in the project proposal and the long-term result that we are trying to address with this project is getting more students to choose scientific professions, have more skills developed to successfully tackle challenges and obstacles along the way and leave secondary school with real life knowledge and experience. Sustainable knowledge not only encompassing theory but also a clear awareness of the importance of self-initiative and social responsibility. So in fact we are trying to educate in order to produce a beneficial effect on society as a whole.