During the past decade, there has been some significant drop in the number of Thai students taking sciences class, even though the country is struggling to transform the economy into an innovation-driven one which needed lots of scientists. These may relate to many sources, but the most important one is the lack of inspiration and motivation in science. To fix these problems, we have to get them inspiration for sciences and augmented reality (AR) is the suitable technology to answer this question. In this experiment, children will be guided to learn about fish and build the virtual aquarium using AR. The children can create their 3D virtual fish from the 2D picture and let them swim in the aquarium. Testing this concept, we have found that lots of children start with curiosity about how it has been done and then went to try and finally enjoy the output.