動力沙的科學：高分子塗層讓沙子變超酷！ The Science Behind Kinetic Sand: How Polymers Make Sand So Cool! скачать в хорошем качестве

動力沙的科學：高分子塗層讓沙子變超酷！ The Science Behind Kinetic Sand: How Polymers Make Sand So Cool!

家中的玩具其實也蘊藏著滿滿的科學知識！ 你知道為什麼動力沙不會黏得到處都是嗎？這與動力沙表面的高分子塗層有關，這種塗層具有疏水性，讓動力沙能保持鬆軟，乾爽不黏手。且聚合物之間有些微吸引力，可以輕鬆捏成形狀，但吸引力不大，所以容易散開。 Ever wondered why kinetic sand sticks together but doesn’t create a sticky mess? It has to do with the polymer coating on the surface of the sand. This coating is hydrophobic, which helps the sand stay soft, dry, and non-sticky. Additionally, there is a slight attraction between the polymers, allowing the sand to be easily molded into shapes, but the attraction isn't strong enough, so it easily falls apart. #兒童科學 #科學小實驗 #科學教育 #KidsScience #steamathome #kidsactivities ---- 📢 更多有趣資訊 FB/IG 搜尋「兒童世界報報」 官網：https://broadcast4kids.com 🎁 贊助支持 https://open.firstory.me/join/broadca... 🤝 合作邀約 [email protected] ✈️ 《我的飛行紀錄 My Flight Log》 蝦皮：https://sho.pe/69u7wn 7-11：https://myship.7-11.com.tw/general/de...