March 3, 2024 is the 25th National Love Ear Day, and the Party and Mass Service Center of Daya Bay Development Zone launched the "Parent-Child Experimental Classroom, I am a Little Scientist" (Phase 10) "Parent-Child Dream Set Sail, Joyfully Explore the Mystery of Sound", and more than 30 teenagers and parents explored the mystery of sound through on-site entertaining and practical experience.
During the activity, the lecturer first introduced the structure of the ear, the principle of sound production, the principle of sound propagation, and the sound principle of air cannon. Through the method of "theory + practice", the children are guided to make paper cups, so that the children can feel the way and charm of sound transmission. The children and their parents made a gramophone together to experience the freeze frame and playback of sound. The teenagers actively took the stage to share the gramophone they had made and the content they recorded, and the atmosphere was high for a while.
At the end of the activity, the lecturer gave the children the knowledge of ear protection, and with the help of noise-canceling headphones and other props, the children could feel the volume and learn to protect their hearing. The "I Am a Little Scientist" series of activities not only enriches young people's scientific knowledge and broadens their horizons, but also allows parents to grow together in the process of accompanying their children, and enhances parent-child affection.