The collection of scientific articles brings together articles authored by the teachers of the Undergraduate Courses in Chemistry, Mathematics and Food Technology at the Federal Institute of Education, Science and Technology of Tocantins IFTO -Paraíso do Tocantins campus. The scientific articles referring to the areas of exact and earth sciences, agrarian sciences and engineering, were prepared based on research and scientific initiation works developed, during the years 2018 and 2019, by teachers with the collaboration of scholarship students and volunteers, in order to contribute for academic quality, providing the ability to learn using the stimulus of scientific research and the production of knowledge.The scientific works in this collection were presented at conferences, in an expanded summary format, allowing its authors to exchange experiences with researchers from Brazilian universities, members of the scientific communities in Brazil and abroad, on the dissemination and application of scientific research carried out. The publication of the collection reflects the commitment of the organizing professors with the technical-scientific bases and the development of scientific research in the undergraduate courses of the IFTO Campus Paraíso do Tocantins.