The topic of the project is observing changes in the nature, discussing about that, writing reports, collecting materials and documentation, making presentations. Pupils will have the opportunity to learn vividly, do the research work, learn using different sources of knowledge ( ICT, books, referent collection from school library fund, popular scientific magazines, children magazines…) The project is important for Primary school Zlatar Bistrica and its partners because PS Zlatar Bistrica is international eco school and this project would integrate in school’s curriculum. The topics about the environment, ecology and sustainable development are known to teachers and students so this project would continue previous activities in schools partners. Local community, parents, other schools, faculties and institutes can be involved in the project, too.