Astronomy is one of the interesting but difficult topics in science for elementary education. Therefore, it is interesting to create astronomy activities that children can understand clearly. The researchers developed activities by using astronomy and botany to improve writing skills. They have to glue the local owers on the star pictures then write the name of those owers, the name of the constellation and write an essay describing their work. The participants are into two groups. 71 3rd year undergraduate students who registered for teaching and are learning science as an elementary education subjec, and 10 1st grade student from the laboratory school of Ubon Ratchathani Rajabhat university. We can conclude that both groups were more interested in astronomy, they can tell the name of local owers and not only used their imagination to create their work, but also to write great essays.