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      <title>기체 활용 자료 조사 발표(4-4) by </title>
      <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy</link>
      <description>실생활에서 기체가 사용되는 모습을 사진이나 비디오로 찍어 한 개씩 포스팅하세요. 예: 헬륨 풍선, 부엌의 가스레인지 등.</description>
      <language>en-us</language>
      <pubDate>2025-10-23 02:23:38 UTC</pubDate>
      <lastBuildDate>2025-10-24 03:10:38 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>활동 안내</title>
         <author>dpad130556</author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646441248</link>
         <description><![CDATA[<ol><li><p>주변에서 기체가 사용되는 예시를 찾으세요.</p></li><li><p>해당 예시를 사진을 찾으세요..</p></li><li><p>아래의 ‘+ 추가’ 버튼을 눌러 포스트를 작성하세요.</p></li><li><p>포스트 제목에 간단히 예시의 이름을 적으세요.</p></li><li><p>본문에는 그 예시가 어떻게 기체를 사용하는지 짧게 설명하세요.</p></li><li><p>친구들의 소개내용을 확인하고 댓글 달아주세요. 포스트도 확인해보세요!</p></li></ol>]]></description>
         <pubDate>2025-10-23 02:23:38 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646441248</guid>
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         <title>과자봉지속 질소 (김은주)</title>
         <author>dpad130556</author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646441250</link>
         <description><![CDATA[<p>과자봉지의 내용물을 보존할 때 이용한다. </p>]]></description>
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         <pubDate>2025-10-23 02:23:38 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646441250</guid>
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         <title>친환경 자동차 연소 수소 (김은주)</title>
         <author>dpad130556</author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646459519</link>
         <description><![CDATA[<p>수소는 친환경연료로 자동차 연료에 사용됨</p>]]></description>
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         <pubDate>2025-10-23 02:32:15 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646459519</guid>
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         <title>탄산음료에 들어있는 이산화탄소(정이담)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646468095</link>
         <description><![CDATA[<p>이산화 탄소가 물에  녹아  기포를 형성하며 이로인해 음료가 톡쏘는 청량감을 가진다</p>]]></description>
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         <pubDate>2025-10-23 02:36:27 UTC</pubDate>
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         <title>이산화 탄소가 들어가있는 탄산음료          ☆조아라☆</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646468907</link>
         <description><![CDATA[<p>이산화 탄소가 들어가, 좀 느글거릴때 탄산이 확 잡아준다.</p>]]></description>
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         <pubDate>2025-10-23 02:36:47 UTC</pubDate>
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         <title>수소 자동차 (홍주안)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646471819</link>
         <description><![CDATA[<p>수소(H20)이여서 편하게 쓸수 있다</p>]]></description>
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         <pubDate>2025-10-23 02:38:10 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646471819</guid>
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         <title>탄산음료 속에 들어있는 이산화탄소 (변성완)^^☆ </title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646472014</link>
         <description><![CDATA[<p>탄산음료 속 탄산은 이산화탄소 임 **</p>]]></description>
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         <pubDate>2025-10-23 02:38:15 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646472014</guid>
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         <title>소화기속 이산화탄소☆허정민☆</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646473117</link>
         <description><![CDATA[<p>이산화탄소는 불을끄는 성질이 있어 소화기 속에 들어있다☆</p>]]></description>
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         <pubDate>2025-10-23 02:38:45 UTC</pubDate>
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      <item>
         <title>탄산음료에 들어있는 이산화탄소 (김민서)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646475729</link>
         <description><![CDATA[<p>탄산음료에 들어있는 탄산은 이산화탄소 이다.</p>]]></description>
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         <pubDate>2025-10-23 02:39:58 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646475729</guid>
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      <item>
         <title>비행기 연료속 수소 (김수아)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646477350</link>
         <description><![CDATA[<p>옛날에 수소를 비행기 연료로 씀</p>]]></description>
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         <pubDate>2025-10-23 02:40:46 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646477350</guid>
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         <title>과자 봉지 속 질소 (이승윤)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646480146</link>
         <description><![CDATA[<p>과자 봉지 속 질소가 과자를 오래 보존시켜준다.</p>]]></description>
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         <pubDate>2025-10-23 02:42:08 UTC</pubDate>
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         <title>포카칩 안에 있는 질소?</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646480637</link>
         <description><![CDATA[<p>포카칩 안에 질소가있어요 왜냐하면 과자을보존할랄고(정선우)</p>]]></description>
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         <pubDate>2025-10-23 02:42:21 UTC</pubDate>
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         <title>이산화탄소 소화기(김태웅)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646481260</link>
         <description><![CDATA[<p>산소보다 무거운 이산화탄소의 성질을 이용해 산소를 덮어 버립니다.</p><p><br></p>]]></description>
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         <pubDate>2025-10-23 02:42:39 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646481260</guid>
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         <title>헬륨 때문에 날라가는 풍선(염주원)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646482891</link>
         <description><![CDATA[<p>헬륨은 가볍고 공기보다 부력이 큼</p>]]></description>
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         <pubDate>2025-10-23 02:43:24 UTC</pubDate>
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      <item>
         <title>소화기 속 이산화탄소</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646483089</link>
         <description><![CDATA[<p>소화기 속 이산화탄소로 불을 끌 수 있다.</p><p>(심영목)</p>]]></description>
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         <pubDate>2025-10-23 02:43:30 UTC</pubDate>
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         <title>비행선 속 혤륨[안도윤]</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646486237</link>
         <description><![CDATA[<p>비행선 속 혤륨이 있어 하늘 위로 둥둥 떠다닐 수 있다</p>]]></description>
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         <pubDate>2025-10-23 02:44:56 UTC</pubDate>
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         <title>과자봉지</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646488952</link>
         <description><![CDATA[<p>과자</p>]]></description>
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         <pubDate>2025-10-23 02:46:07 UTC</pubDate>
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         <title>이산화탄소가 들어가있는 소화기(한유주</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646488954</link>
         <description><![CDATA[<p>이산화 탄소는 불을 끄는 성질이 있어 소화기에 이산화 산소가 들어간다.</p>]]></description>
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         <pubDate>2025-10-23 02:46:07 UTC</pubDate>
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         <title>소화기 속 이산화탄소 (강도규)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646490405</link>
         <description><![CDATA[<p><sub>소화기가 불을 끄는 원리: 불에 타는 공기를 차단한다</sub></p>]]></description>
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         <pubDate>2025-10-23 02:46:45 UTC</pubDate>
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         <title>이산화탄소        (김시연)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646491497</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-10-23 02:47:10 UTC</pubDate>
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         <title>핼륨풍선</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646497007</link>
         <description><![CDATA[<p>풍선에 핼륨가스를 넣으면 풍선이 하늘로 날아오른다.</p><p>(심영목)</p>]]></description>
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         <pubDate>2025-10-23 02:48:51 UTC</pubDate>
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         <title>소화기에 들어있는 이산화탄소(이서정)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646500763</link>
         <description><![CDATA[<p>이산화탄소는 공기보다 무겁고 불연상이라, 연소중인 산소를 밀어내고 소화기 내부로 유입 되어 산소 농도를 낮아져불을 끈다</p>]]></description>
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         <pubDate>2025-10-23 02:49:29 UTC</pubDate>
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         <title>과자봉지 속 질소[안도윤]</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646503175</link>
         <description><![CDATA[<p>질소는 식품포장때 잘 이용이 된다</p>]]></description>
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         <pubDate>2025-10-23 02:49:53 UTC</pubDate>
         <guid>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646503175</guid>
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         <title>이산화  탄소를  기포를 청량감을  가짐</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646506068</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-10-23 02:50:32 UTC</pubDate>
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         <title>탄산음료 속 이산화탄소</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646508762</link>
         <description><![CDATA[<p>탄산음료는 이산화탄소를 물에 녹여 만든 음료이다.</p>]]></description>
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         <pubDate>2025-10-23 02:51:43 UTC</pubDate>
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         <title>과자봉지(이지율)(삭제시찾아감 기대^)</title>
         <author></author>
         <link>https://padlet.com/donghakcho/z2t7mm1czp8oqhgy/wish/3646509378</link>
         <description><![CDATA[<p>과자,차와같은 식품안에 넣어 내용물을 보존하고 신선하게 보관 되는곳에 사용된다</p>]]></description>
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         <pubDate>2025-10-23 02:51:59 UTC</pubDate>
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