Our project was opened with the aim of establishing the foundations of STEAM in the preschool period. With this project, we will redesign the houses of animals, genius engineers of the ecosystem, using the most ecological materials, with their amazing engineering designs and extraordinary looking houses, which have inspired many architects and engineers. In addition, while designing the homes of animals, we will question and investigate the negative effects of climate changes on living things, and by proposing solutions to problems, we will get to know the ecosystem we live in more closely.