{"id":8645,"date":"2025-03-26T10:10:56","date_gmt":"2025-03-26T10:10:56","guid":{"rendered":"https:\/\/castar.edu.hk\/?p=8645"},"modified":"2025-03-27T02:25:07","modified_gmt":"2025-03-27T02:25:07","slug":"%e7%a9%ba%e6%b0%a3","status":"publish","type":"post","link":"https:\/\/castar.edu.hk\/en\/%e7%a9%ba%e6%b0%a3\/","title":{"rendered":"Air"},"content":{"rendered":"
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Air<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t
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What are the properties of air? Let's explore together!
Air is colorless and odorless\u2014how can we know it's there?
The children tried to capture air using plastic bags and balloons. Once captured, although it remained invisible, measuring it revealed that the weight of the balloons increased\u2014it turned out to be the weight of the air!
By using fans and running with pinwheels, they felt the moving air and discovered that flowing air can make objects move!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t

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