This article discusses the value of cellular phones use in science education. 74 elementary school students participated in this research. They were connected to the plant information search system for cellular phones which was constructed by National Institute for Educational Policy Research (NIER) of Japan. They retrieved plant information using cellular phones via the Internet. The results were as follows: (1) pupils learned about plants in the field, and retained the knowledge for at least a week, (2) the score of 'interest' increased, (3) the score of 'motivation' also increased. It is believed that cellular phones could be one of the most effective tools for fieldwork in science classes because students could access information immediately in the field.
