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      <title>1단원 변화와 다양성 자료 by 신도경교사</title>
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      <language>en-us</language>
      <pubDate>2025-08-14 09:12:46 UTC</pubDate>
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         <title>그랜드캐니언 도입 영상</title>
         <author>pantarei01</author>
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         <pubDate>2025-08-14 10:05:13 UTC</pubDate>
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         <title>교과서 산소농도 그래프 해석</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3543278341</link>
         <description><![CDATA[<p>1Ga는 10억년 단위입니다.</p><ol><li><p>3.2~2.4Ga 동안 산소가 만들어지지만 토양의 철과 반응하여 즉시 소비되어 축적되지 못한다 / 이때 반응한 산화철이 지층으로 남아있음 ㅎㄷㄷ(호상철광층)</p></li><li><p>2.4~2.2Ga 동안 대기에 산소가 축적되어 산소농도가 급증하고 혐기성 생물이 대멸종하였다.</p></li><li><p>2.2~1.0Ga 초대륙 로디니아가 형성되며 해안선이 줄어들어 광합성 생산성이 감소한다. (남세균은 얕은 해안가 서식)</p></li><li><p>1.0~0.5Ga 로디니아가 분열하며 해안선이 증가하여 광합성 조류의 양이 많아지고 광합성 효율도 진화를 통해 올라감.</p></li><li><p>0.5~0.4Ga 캄브리아 폭발기로 육상에도 식물이 출현하며 산소농도가 급증하고, 오존층이 형성되었다. 석탄기까지 식물의 리그닌을 분해할 수 있는 생물이 없어 식물체가 그대로 뭍혀 석탄화 되었으며, 보통 사체가 분해되며 산소가 소모되는데 그러지 못해 산소가 소모되지 않고 정점을 찍는다.</p></li><li><p>0.3Ga~현재 리그닌 분해 균류의 진화로 산소소비가 증가하며 균형이 맞음.</p></li></ol><p><br/></p><p>출처: Govindjee, &amp; Shevela, D. (2011). Adventures with cyanobacteria: a personal perspective. <em>Frontiers in plant science</em>, <em>2</em>, 28.</p>]]></description>
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         <pubDate>2025-08-14 10:11:49 UTC</pubDate>
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         <author>pantarei01</author>
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         <pubDate>2025-08-14 10:13:23 UTC</pubDate>
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         <title></title>
         <author>pantarei01</author>
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         <pubDate>2025-08-14 10:29:44 UTC</pubDate>
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         <title>멸종 과의 수와 멸종률 그래프</title>
         <author>pantarei01</author>
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         <pubDate>2025-08-14 10:30:12 UTC</pubDate>
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      <item>
         <title></title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3545249899</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://youtu.be/Dk1HnUd8TZ8?si=OJLS71lUNizSi-li&amp;t=1070" />
         <pubDate>2025-08-17 05:16:43 UTC</pubDate>
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      <item>
         <title>지질시대의 생물 변화 그림</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3546170249</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-08-18 10:51:37 UTC</pubDate>
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      <item>
         <title>국립중앙과학관 자연사관 온라인 전시관</title>
         <author></author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3547340169</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.science.go.kr/app/vr1/index.html?s=pano28945&amp;h=0&amp;v=0&amp;f=90" />
         <pubDate>2025-08-19 07:16:43 UTC</pubDate>
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      <item>
         <title>&#39;선사시대: 공룡이 지배하던 지구 - Prehistoric Planet&#39; 프리히스토릭 플래닛 中 수컷 카르노타우루스(Carnotaurus)의 구애의 춤 (한글 자막)</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3548514172</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=bLpZnwR8PIQ" />
         <pubDate>2025-08-20 04:29:45 UTC</pubDate>
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      <item>
         <title>지질시대 대륙 분포의 변화</title>
         <author></author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3548863968</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-08-20 11:08:02 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3548863968</guid>
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      <item>
         <title>지질시대 대멸종 원인의 가설 타당성 평가하기</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3552611951</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-08-24 05:58:12 UTC</pubDate>
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      <item>
         <title>시뮬레이션 활동지 hwp</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3556125170</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-08-27 00:22:56 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3556125170</guid>
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      <item>
         <title>DART 프로젝트</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3556489014</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-08-27 04:02:15 UTC</pubDate>
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      <item>
         <title>지구 온도 상승에 따른 생태계 변화</title>
         <author>aphrodite9</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3556748108</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://artsexperiments.withgoogle.com/impactfilter/" />
         <pubDate>2025-08-27 07:26:42 UTC</pubDate>
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      <item>
         <title>중생대말 5차 대멸종 영상</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3557134994</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=91YPDftXLOc" />
         <pubDate>2025-08-27 14:04:08 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3557134994</guid>
      </item>
      <item>
         <title>생물다양성 관련 영상</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3567773645</link>
         <description><![CDATA[<p>교과서 28p 유전적 차이에 대해 돌연변이와 생식세포의 다양한 조합으로 설명하는데, 생식세포의 다양한 조합과 관련된 영상입니다.</p>]]></description>
         <enclosure url="https://youtu.be/QN1iOiSgMiU?si=1EkINDbghaG4vnsA" />
         <pubDate>2025-09-04 00:25:47 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3567773645</guid>
      </item>
      <item>
         <title>유전적 다양성이 적으면 벌어지는 일</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3567776567</link>
         <description><![CDATA[<p>대부분의 작물은 일정한 품질의 상품을 만들기 위해 유전적 다양성이 극단적으로 낮은 단위생식(클론)을 통해 이루어집니다. 바나나가 그 대표인데요 관련한 영상입니다.</p>]]></description>
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         <pubDate>2025-09-04 00:27:17 UTC</pubDate>
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      <item>
         <title>p.39 철의 제련</title>
         <author>aphrodite9</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3568185932</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=vdhCVePGLmM" />
         <pubDate>2025-09-04 03:57:46 UTC</pubDate>
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      <item>
         <title>중화반응 시뮬레이션</title>
         <author>pantarei01</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3571978263</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://fbwiqb.github.io/acid-base/" />
         <pubDate>2025-09-07 03:00:01 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3571978263</guid>
      </item>
      <item>
         <title>산화 환원의 개념과 정의에 관한 연구</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3573324858</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-08 06:34:01 UTC</pubDate>
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      <item>
         <title>산화 환원의 개념과 정의에 관한 연구(요약)</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3573325365</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-08 06:34:21 UTC</pubDate>
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      </item>
      <item>
         <title>p.40 철 솜의 변화 추론하기</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3574693878</link>
         <description><![CDATA[<p>~2분까지</p>]]></description>
         <enclosure url="https://www.youtube.com/watch?v=-oxTK_uP2iY" />
         <pubDate>2025-09-08 23:45:19 UTC</pubDate>
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      </item>
      <item>
         <title>p.41 산화 구리(Ⅱ)의 환원 실험</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3574825134</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://youtu.be/8NBRmk33t2o?si=Nm6pPqWiovtIg-zT&amp;t=10" />
         <pubDate>2025-09-09 01:03:14 UTC</pubDate>
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      </item>
      <item>
         <title>p.42 에칭 판화 원리 탐구하기_탐구 과정</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3577005348</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-10 00:58:29 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3577005348</guid>
      </item>
      <item>
         <title>p.42 에칭 판화 원리 탐구하기_탐구 정리</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3577006310</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-10 00:59:01 UTC</pubDate>
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      </item>
      <item>
         <title>p.42 에칭 판화 원리 탐구하기_YTN 사이언스 실험 영상</title>
         <author>kdm0514</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3577072181</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://youtu.be/dXi6rx13ruU?si=QnIJNeuTAJN4-viA" />
         <pubDate>2025-09-10 01:28:49 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3577072181</guid>
      </item>
      <item>
         <title>p.42 구리와 질산은 수용액의 반응</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3578299519</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=Vth3tGR8mi4" />
         <pubDate>2025-09-10 14:24:54 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3578299519</guid>
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      <item>
         <title>p.43 아연과 염산의 반응</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3579666107</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=fbtPAFVvOrM" />
         <pubDate>2025-09-11 06:16:49 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3579666107</guid>
      </item>
      <item>
         <title>p.43 마그네슘의 연소</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3579666634</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=8Bry-ZiWSw8" />
         <pubDate>2025-09-11 06:17:10 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3579666634</guid>
      </item>
      <item>
         <title>생활 속 중화 반응</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3593561588</link>
         <description><![CDATA[]]></description>
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         <pubDate>2025-09-19 07:32:32 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3593561588</guid>
      </item>
      <item>
         <title>화학반응과 에너지 학생 오개념 자료</title>
         <author>hongxchem1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3596732377</link>
         <description><![CDATA[<p>다 읽어보실 필요는 없고 12쪽에 "학생들이 발열 반응과 흡열 반응에서 보이는 오개념"만 읽어보셔도 됩니다.</p>]]></description>
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         <pubDate>2025-09-22 04:15:57 UTC</pubDate>
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      </item>
      <item>
         <title>p.56 손난로 발열 원리</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3609543742</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=Y4zmjf7DQNw" />
         <pubDate>2025-09-29 15:29:12 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3609543742</guid>
      </item>
      <item>
         <title>p.65 마그네슘 연소</title>
         <author>kyeongah3082_1</author>
         <link>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3609548540</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=BJCpsi5FrhE" />
         <pubDate>2025-09-29 15:31:18 UTC</pubDate>
         <guid>https://padlet.com/cnsa/fh2bmpyctj07b9er/wish/3609548540</guid>
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