On August 22, 2013, an outreach event called "Let's Play with the Earth 2013″ was held at the Museum of Evolving Earth on Tokyo Institute of Technology's Ookayama campus. This event was hosted by the Museum with the support of ELSI. Approximately 130 elementary school students attended the event, joined by their parents. During the two hour event, the children were able to explore the world of Earth Science through various hands-on experiences. Using the difference in specific gravity, the children learned to identify rocks and minerals, they learned how to uncover fossils, and to observe minerals with microscopes. The children were exposed to experiences that they would otherwise not have access to in their regular school life, thus giving them a chance to develop an interest and learn the fun of Earth Science.