无处不在的细菌，从身体里的好坏细菌，到生活环境中的细菌。有蛀牙菌、肚子里的有益菌、痒痒伤口、脏脏马桶上的细菌等。通过轻松的情境音乐融入卫生习惯教学，有效地提升孩子对细菌的认知。建立学龄前儿童对卫生安全的概念，从小养成良好的健康生活习惯。
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