We performed a trial of education of ionizing radiation, using interactive electronic books, measurement of ionizing radiation and production of a simple cloud chamber at junior high school. The interactive electronic book was composed of an interpretive article of basic knowledge of radiation, video of cloud chamber, galleries, and interactive widgets of many exercises. In junior high school, using the electronic book, we were teaching about key properties of ionizing radiation. From the results of a student questionnaire given after the trial, about 90-100% of the junior high school students had acquired basic knowledge of the subject, about 90-100% thought the great fear of radiation have been dispelled. And a lot of junior high school students interested in the technology of ionizing radiation and the effects of ionizing radiation on the human body.
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