2021년, 어느 해보다도 뜻깊은 추억을 만들어 가는 멋진 6학년입니다.
공기를 이루는 여러가지 기체 |
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이름 | 윤 별별 | 등록일 | 21.04.29 | 조회수 | 12 |
첨부파일 |
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이전글 | 온도가 변화면 기체의 부피는 어떻게 달라질까 |
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다음글 | 이산화 탄소는 어떤 성질? |