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      <title>2-2 by 교사성희숙</title>
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      <pubDate>2025-07-03 05:52:58 UTC</pubDate>
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         <title>학번과 이름 쓰기</title>
         <author>siheungt240006</author>
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         <description><![CDATA[<ol><li><p>나랑 닮은 원소의 성질 3가지 적기</p></li></ol><p><br></p><p>   2. 나랑 닮은 원소의 용도 3가지 적기</p><p><br></p><ol start="3"><li><p>나랑 닮은 원소의 타이포그래피를 작성하여 올리기</p></li></ol>]]></description>
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         <pubDate>2025-07-04 03:09:20 UTC</pubDate>
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         <title>20217이서준</title>
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         <pubDate>2025-07-04 03:17:10 UTC</pubDate>
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         <title>20215윤솔</title>
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         <pubDate>2025-07-04 03:18:57 UTC</pubDate>
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         <title>김법균</title>
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         <description><![CDATA[<p>Si</p>]]></description>
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         <pubDate>2025-07-04 03:19:07 UTC</pubDate>
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         <title>헬륨</title>
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         <description><![CDATA[<p>1. 무색,무취,무미의 기체로, 끓는점이 가장낮고, 절대영도에서도 액체상태로 존재 할 수 있는 유일한 원소입니다.</p><p>2.헬륨은 비행선 냉각제, MRI기계 등에 사용됩니다.</p>]]></description>
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         <pubDate>2025-07-04 03:19:19 UTC</pubDate>
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         <title>박지후</title>
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         <pubDate>2025-07-04 03:22:05 UTC</pubDate>
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         <title>20208박소민</title>
         <author>siheungs241408</author>
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         <pubDate>2025-07-04 03:23:24 UTC</pubDate>
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         <title></title>
         <author>siheungs252210</author>
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         <pubDate>2025-07-04 03:23:42 UTC</pubDate>
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         <title>20204 김나리</title>
         <author>siheungs252204</author>
         <link>https://padlet.com/siheungms/p664liiii7wq44u8/wish/3510280591</link>
         <description><![CDATA[<p>헬륨 원소의 성질</p><p>-가장 가벼운 기체 중 하나</p><p>-불에 안 타는 기체 (비활성 기체)</p><p>-목소리를 얇게 만드는 기체</p><p><br/></p><p>헬륨 원소의 용도 </p><p>풍선, 비행선에 넣음 – 가볍고 안전해서</p><p>냉각제 – MRI 같은 기계 식힐 때</p><p>잠수용 공기 – 깊은 바다에서 사용</p><p><br/></p>]]></description>
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         <pubDate>2025-07-04 03:24:47 UTC</pubDate>
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         <title>20214유지민</title>
         <author>siheungs252214</author>
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         <pubDate>2025-07-04 03:25:39 UTC</pubDate>
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         <title>120218 이승현</title>
         <author>siheungs252218</author>
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         <description><![CDATA[<p>철 </p><p><br></p><p>자성이 있음</p><p>단단하지만 쉽게 가공 가능</p><p>녹는점이 1538°C</p><p><br></p><p>철근</p><p>고강도 구조제</p><p>변압기 등 다양한 전기부품</p>]]></description>
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         <pubDate>2025-07-04 03:25:42 UTC</pubDate>
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         <title></title>
         <author>siheungs252218</author>
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         <pubDate>2025-07-04 03:25:57 UTC</pubDate>
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         <title>20211 송현서</title>
         <author>siheungs241111</author>
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         <pubDate>2025-07-04 03:26:52 UTC</pubDate>
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         <title>20213심예린</title>
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         <pubDate>2025-07-04 03:26:58 UTC</pubDate>
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         <title>20201 강승빈</title>
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         <pubDate>2025-07-04 03:27:50 UTC</pubDate>
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         <title>20223 전민선</title>
         <author>siheungs252223</author>
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         <pubDate>2025-07-04 03:28:03 UTC</pubDate>
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         <title>김건형 20202</title>
         <author>siheungs241706</author>
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         <pubDate>2025-07-04 03:28:09 UTC</pubDate>
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         <title>티타늄</title>
         <author>siheungs252221</author>
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         <description><![CDATA[<p>1. 가볍고 강하다</p><p>2. 부식에 강하다</p><p>3. 내열성이 뛰어나다</p><p> 티타늄의 용도 3가지</p><p>1. 항공우주 산업</p><p>2. 의료용 임플란트</p><p>3. 스포츠/일상 용품</p><p><br/></p><p><br/></p>]]></description>
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         <pubDate>2025-07-04 03:28:27 UTC</pubDate>
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         <title></title>
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         <pubDate>2025-07-04 03:31:28 UTC</pubDate>
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         <title>20216 윤신혜</title>
         <author>siheungs252216</author>
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         <description><![CDATA[<p>[철(fe)의 성질]<br>-강하고 단단하다<br>-자성을 가진다<br>-산화되기 쉽다 (녹슬기 쉽다)<br>[철(fe)의 용도]<br>-건축 자재<br>-자동차, 선박 등의 기계 부품<br>-가전제품, 공구 등의 재료</p>]]></description>
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         <pubDate>2025-07-04 03:32:29 UTC</pubDate>
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         <title>20224 전재영</title>
         <author></author>
         <link>https://padlet.com/siheungms/p664liiii7wq44u8/wish/3510289906</link>
         <description><![CDATA[<p>헬륨 </p><p>1→ 무색·무취·무미 기체라 눈에 보이지 않는다</p><p>2화학 반응을 거의 안 함 → 그래서 안전하고 안정적이에요</p><p>3공기보다 가볍기 때문에 위로 떠오름 (그래서 풍선이 하늘로 올라가요)</p><p>용도</p><p>1<strong>풍선, 비행선 가스</strong><br>→ 가볍고 불이 붙지 않아 안전하게 하늘에 뜰 수 있어요</p><p>2<strong>헬륨 풍선 목소리 변조</strong><br>→ 헬륨을 마시면 소리가 높아지는 이유는, 공기보다 가볍고 소리가 더 빠르게 퍼지기 때문이에요</p><p>3<strong>레이저나 과학 장비</strong><br>→ 헬륨은 <strong>헬륨-네온 레이저</strong> 같은 특수 장비에도 사용돼요</p>]]></description>
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         <pubDate>2025-07-04 03:32:32 UTC</pubDate>
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         <title></title>
         <author>siheungs252222</author>
         <link>https://padlet.com/siheungms/p664liiii7wq44u8/wish/3510292602</link>
         <description><![CDATA[<p><br>아연의 특징:</p><p>1.청백색을 띠는 금속으로, 실온에서는 부서지기 쉬우나, 특정 온도(100~210°C)에서 전성과 연성이 우수하다. <br>2.아연은 금속 중 비교적 낮은 온도에서 녹고, 산화되어도 눈에 잘 띄지 않는 성질 때문에 부식 방지, 도금, 합금 등으로 널리 활용된다. <br>3.아연은 효소의 구성 성분으로 작용하여 성장, 발육, 수정 능력 조절 등에 관여합니다. <br><br>아연의 활용:<br>1.<strong>합금</strong><br>2.<strong>다이캐스팅</strong> <br>3.도금<br></p>]]></description>
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         <pubDate>2025-07-04 03:35:12 UTC</pubDate>
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         <title>20226조연우</title>
         <author>siheungs252226</author>
         <link>https://padlet.com/siheungms/p664liiii7wq44u8/wish/3510295682</link>
         <description><![CDATA[<p>은백색의 원소이며 원소기호는 12이며 DNA,RNA등을 생산함</p><p>불꽃놀이랑 구조재 비료에 쓰임</p>]]></description>
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         <pubDate>2025-07-04 03:38:00 UTC</pubDate>
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