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      <title>4학년 1~3반_과학: 일상생활에서 사용되는 기체 조사하기 class activities by 공개용</title>
      <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc</link>
      <description>핸드폰을 활용하여 일상 속 기체를 조사하고, 다양한 방식으로 학습 내용을 강화하는 활동 모음</description>
      <language>en-us</language>
      <pubDate>2025-09-24 04:17:46 UTC</pubDate>
      <lastBuildDate>2025-09-29 11:39:09 UTC</lastBuildDate>
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      <item>
         <title>산소</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601017376</link>
         <description><![CDATA[<p>산소는 다른 물질을 잘 타게 합니다.</p>]]></description>
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         <pubDate>2025-09-24 04:21:23 UTC</pubDate>
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      <item>
         <title>이산화탄소</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601017692</link>
         <description><![CDATA[<p>콜라에 설탕 입자를 넣으면, 이산화탄소가 생성되는 반응이 폭발적으로 일어난다</p>]]></description>
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         <pubDate>2025-09-24 04:21:36 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601017692</guid>
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      <item>
         <title>질소</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601017899</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-24 04:21:44 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601017899</guid>
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      <item>
         <title>헬륨</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601018042</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-24 04:21:50 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601018042</guid>
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      <item>
         <title>수소</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601018160</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-24 04:21:56 UTC</pubDate>
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      <item>
         <title>최연우리(산소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601040752</link>
         <description><![CDATA[<p>산소는 불을 잘 피우게 합니다.</p>]]></description>
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         <pubDate>2025-09-24 04:37:42 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601040752</guid>
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      <item>
         <title>이건호(산소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601044366</link>
         <description><![CDATA[<p>산소는 인간이 숨을 쉴 수 있게 해주고 금속을 녹인다.그리고 로켓 연료에 들어간다.</p>]]></description>
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         <pubDate>2025-09-24 04:40:22 UTC</pubDate>
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      <item>
         <title>심지원 (산소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601045165</link>
         <description><![CDATA[<p>산소는 생물을 숨 쉬게 합니다</p>]]></description>
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         <pubDate>2025-09-24 04:41:00 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601045165</guid>
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      <item>
         <title>이서진 (질소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601046979</link>
         <description><![CDATA[<p>질소는 식품의 변질을 막고 식품을 용기에서 방출시킨다</p>]]></description>
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         <pubDate>2025-09-24 04:42:21 UTC</pubDate>
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      <item>
         <title>나현 이산화탄소 </title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601048504</link>
         <description><![CDATA[<p>데이터 공조의 숨은진실 </p>]]></description>
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         <pubDate>2025-09-24 04:43:32 UTC</pubDate>
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      <item>
         <title>최연우리(헬륨)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050029</link>
         <description><![CDATA[<p>공기보다 위로 뜬다</p>]]></description>
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         <pubDate>2025-09-24 04:44:40 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050029</guid>
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      <item>
         <title>이서진 (헬륨)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050155</link>
         <description><![CDATA[<p>헬륨은 혈액에 잘 녹지 않는다</p>]]></description>
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         <pubDate>2025-09-24 04:44:45 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050155</guid>
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      <item>
         <title>정영준(산소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050702</link>
         <description><![CDATA[<p>산소는 불을 잘 지피게 합니다.</p>]]></description>
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         <pubDate>2025-09-24 04:45:07 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601050702</guid>
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      <item>
         <title>정영준(이산화탄소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601055244</link>
         <description><![CDATA[<p>이산화탄소는 탄산음료, 소화기, 드라이아이스에 쓰입니다</p>]]></description>
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         <pubDate>2025-09-24 04:47:48 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601055244</guid>
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      <item>
         <title>최연우리(수소</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601056525</link>
         <description><![CDATA[<p>물질이 나지 않는다</p>]]></description>
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         <pubDate>2025-09-24 04:48:36 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601056525</guid>
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      <item>
         <title>채연</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601056777</link>
         <description><![CDATA[<p>헬륨 풍선 및 비행선: 공기보다 가범고 폭발 위험 이없어 풍선이나 비행선을 띄우는 데 사용됩니다.</p>]]></description>
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         <pubDate>2025-09-24 04:48:45 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601056777</guid>
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      <item>
         <title>심지원 (질소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601057019</link>
         <description><![CDATA[<p>질소는 과자 봉지의 내용물을 보존한다.</p><p><br/></p>]]></description>
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         <pubDate>2025-09-24 04:48:54 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601057019</guid>
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      <item>
         <title>정영준(질소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601058399</link>
         <description><![CDATA[<p>질소는 비료와 과자 봉지안에의 기체에 쓰입니다.</p>]]></description>
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         <pubDate>2025-09-24 04:49:53 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3601058399</guid>
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      <item>
         <title>정영준(수소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3603728101</link>
         <description><![CDATA[<p>수소는 청정에너지, 민주적 에너지, 에너지캐리어 역할, 경제적 파급효과를 만든다.</p>]]></description>
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         <pubDate>2025-09-25 10:21:45 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3603728101</guid>
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      <item>
         <title>정영준(헬륨)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3603735572</link>
         <description><![CDATA[<p>풍선과 비행선에 쓰인다.</p>]]></description>
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         <pubDate>2025-09-25 10:27:21 UTC</pubDate>
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      <item>
         <title></title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608075079</link>
         <description><![CDATA[<p><strong>산소</strong></p><p>성질 및 이용 사례: 생물이 숨을 쉬는 데 필요하다. 산소 발생기에 이용한다.</p>]]></description>
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         <pubDate>2025-09-28 23:48:12 UTC</pubDate>
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      <item>
         <title>질소의 사용예(이름)</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608104389</link>
         <description><![CDATA[<p>액체 형태에서는 식품을 충격 냉동하고, 생물학적 물질을 저장하고, 냉동 수술을 수행하고, 플라스틱과 고무를 극저온으로 연마하는 등의 용도로 사용됩니다.</p>]]></description>
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         <pubDate>2025-09-29 00:17:26 UTC</pubDate>
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      <item>
         <title>산소가 사용되는 예(박나연)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608114995</link>
         <description><![CDATA[<p>동식물의 생명유지를 위한 유기호흡에의 이용</p>]]></description>
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         <pubDate>2025-09-29 00:24:37 UTC</pubDate>
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      <item>
         <title>질소(이름:조예준)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608117414</link>
         <description><![CDATA[<p>과자,빵,아이스크림 등 식품포장지에 질소를 충전해 산소와의 접촉을막아 신선도를 유지한다.</p>]]></description>
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         <pubDate>2025-09-29 00:26:00 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608117414</guid>
      </item>
      <item>
         <title>이산화 탄소(종우)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608129959</link>
         <description><![CDATA[<p>이산화탄소는 탄산음료를 만들 때 쓰임</p>]]></description>
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         <pubDate>2025-09-29 00:34:27 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608129959</guid>
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      <item>
         <title>이름(수소)</title>
         <author>yykeun011</author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608178506</link>
         <description><![CDATA[<p>수소는 여러가지 화학 반응에 사용합니다.</p>]]></description>
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         <pubDate>2025-09-29 01:06:56 UTC</pubDate>
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      </item>
      <item>
         <title>수소(정서율)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608188359</link>
         <description><![CDATA[<p>수소는 여러 에너지에 사용됩니다 실제로 러시아가 수소를 엔진으로써 우주선을 뛰었다네요</p>]]></description>
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         <pubDate>2025-09-29 01:12:56 UTC</pubDate>
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      <item>
         <title>전예서(이산화탄소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608191917</link>
         <description><![CDATA[<p>석회수를 뿌옇게 만드는 성질이있다.</p>]]></description>
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         <pubDate>2025-09-29 01:14:55 UTC</pubDate>
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      <item>
         <title>이소을,왕지아(질소)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608193723</link>
         <description><![CDATA[<p>아이스크림은 기본, 주스·커피·칵테일에도 이용</p>]]></description>
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         <pubDate>2025-09-29 01:15:54 UTC</pubDate>
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      <item>
         <title>수소(김은서)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608194325</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-29 01:16:15 UTC</pubDate>
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      <item>
         <title>홍유건[수소]</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3608200126</link>
         <description><![CDATA[<p>자동차🚗에도 수소가이용된다</p>]]></description>
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         <pubDate>2025-09-29 01:19:25 UTC</pubDate>
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      <item>
         <title>질소가 사용되는 예(김도현)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3609060061</link>
         <description><![CDATA[<p>'바삭바삭' 식감과 맛, 유통과정 변질 마키위해 필수.</p>]]></description>
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         <pubDate>2025-09-29 11:11:58 UTC</pubDate>
         <guid>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3609060061</guid>
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      <item>
         <title>헬륨이 사용 되는 예(김보민)</title>
         <author></author>
         <link>https://padlet.com/yykeun011/5t4szt3jizcbchfc/wish/3609095794</link>
         <description><![CDATA[<p>헬륨은 공기보다 가볍습니다. 예로 비행선이나 풍선 속에 주입되는 기체가 바로 헬륨입니다. </p>]]></description>
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         <pubDate>2025-09-29 11:39:07 UTC</pubDate>
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