물질의 세가지 상태 사진 by 이혜진선생님 https://padlet.com/sshlove337/608kzann7mk7ikbh en-us 2025-09-09 23:52:45 UTC 2025-09-10 00:42:20 UTC hello@padlet.com 고체 그릇 sshlove337 https://padlet.com/sshlove337/608kzann7mk7ikbh/wish/3576975059 2025-09-10 00:42:02 UTC https://padlet.com/sshlove337/608kzann7mk7ikbh/wish/3576975059