Tokyo Electron Miyagi held an event entitled “Entertaining Science Show & Tell 2017: Let’s Open a Magic Box!” on August 22, 2017 at the Tokyo Electron Hall Miyagi. The science show & tell started in 2009 with the purpose of letting the children experience the fun of science. At the ninth event held this year, a number of fascinating demonstrations were conducted, including one involving an air cannon. The audience totaled about 2,200 including elementary school children and their guardians. The children were captivated by mysterious low-temperature phenomena and many other scientific demos.