https://padlet.com/djbyeondong/802rr91tw0nae19k en-us 2025-09-24 02:21:48 UTC 2025-09-24 03:37:36 UTC hello@padlet.com https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600853897 2025-09-24 02:46:03 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600853897 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600858566 질소 성질: 질소의 성질로 부풀어 날아간다

]]> 2025-09-24 02:48:21 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600858566 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600904023 헬륨에 특징

]]> 2025-09-24 03:08:57 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600904023 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600911344 2025-09-24 03:12:34 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600911344 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600925815 헬륨의 성질풍선이나라오르네

]]> 2025-09-24 03:20:31 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600925815 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600937984 2025-09-24 03:27:19 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600937984 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600938532 2025-09-24 03:27:38 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600938532 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600938542 2025-09-24 03:27:38 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600938542 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600941529 헬륨의 특징:공기보다 가벼워 날아간다,헬륨을 마시면 목소리가 바뀐다

]]> 2025-09-24 03:29:22 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600941529 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600952464 헬륨의 성질: 공기보다 가벼워서 공기의 인해 풍선을 놓지면 풍서풍선이 올랑

]]> 2025-09-24 03:35:40 UTC https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600952464 https://padlet.com/djbyeondong/802rr91tw0nae19k/wish/3600955588 Siuuuuu

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