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      <title>1학년 동백반 과탐실 by 김가연</title>
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      <pubDate>2024-09-06 03:09:11 UTC</pubDate>
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         <author>kgy010710</author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3105434050</link>
         <description><![CDATA[<p>이 보고서 양식은 모둠별 발표 후, 1인당 1개의 개별 보고서를 작성할 때 사용하세요.</p>]]></description>
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         <pubDate>2024-09-06 03:09:11 UTC</pubDate>
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         <title>생물의 대멸종</title>
         <author></author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3126515356</link>
         <description><![CDATA[<p>'귀납적 탐구방법</p><p><br></p><p>자연 현상: 중생대에 다양한 생물들의 존재는 화석을 통해 관찰할 수 있는데, 신생대로 넘어가는 시기에 육지와 해양에 살던 많은 동물들이 멸종하였다.</p><p><br></p><p>탐구주제(문제): 중생대 말, 대멸종의 주요 원인은 무엇일까?</p><p><br></p><p>----&gt;</p><p>사실</p><p>이리듐이 운석 혹은 우주 먼지 형태로 지구 표면에 전해지며,</p><p>지층이 만들어지는 속도가 같으면 지층 속 이리듐의 양도 같다.</p><p>----&gt;</p><p>관찰1 </p><p>이탈리아 구바오 지역의 K-T 경계층에서 위아래 지층의 약 30배가 되는</p><p>이리듐이 관찰되었다.</p><p><br></p><p>관찰2</p><p>덴마크 스테운스 클린트 지역의 K-T 경계층에서 평균치의 약 160배가 </p><p>되는 이리듐이 검출되었다.</p><p><br></p><p>관찰3</p><p>이리듐을 다량 포함하는 K-T 경계층은 유럽 여러 지역 분포한다.</p><p>----&gt;</p><p>결론 도출</p><p>: K-T 경계층의 이리듐의 양을 고려할 때, 중생대 말 대멸종 주요원인 중 하나가 소행성 충돌이라 추론할 수 있다.</p><p><br></p><p>추가 자료</p><p>: <a rel="noopener noreferrer nofollow" href="https://youtu.be/sflZ-YSyewE?si=PHCw5X57HULYSDyV">https://youtu.be/sflZ-YSyewE?si=PHCw5X57HULYSDyV</a></p><p>: <a rel="noopener noreferrer nofollow" href="https://youtu.be/nDqZ9zG25cY?si=l4j_s_7aPA3s4Ai8">https://youtu.be/nDqZ9zG25cY?si=l4j_s_7aPA3s4Ai8</a> </p><p><br></p>]]></description>
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         <pubDate>2024-09-19 00:27:17 UTC</pubDate>
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         <title></title>
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         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3126522428</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-09-19 00:30:27 UTC</pubDate>
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         <description><![CDATA[<p>2. 관찰 주제 선정</p><p>그 사실을 바탕으로 로잘린드 프랭클린은 ‘DNA의 구조는 어떨까?‘에 대해서 탐구하기로 결정함</p>]]></description>
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         <pubDate>2024-09-19 00:38:18 UTC</pubDate>
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         <title></title>
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         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3126540299</link>
         <description><![CDATA[<p>3. 관찰 방법과 절차의 고안</p><p>로잘린드 프랭클린은 DNA이중나선 구조를 x-ray로 촬영하기로 결정함.</p><p><a rel="noopener noreferrer nofollow" href="https://youtu.be/Uk9ivTCkq7Y?si=j_5T69P62R087R3Y">https://youtu.be/Uk9ivTCkq7Y?si=j_5T69P62R087R3Y</a></p>]]></description>
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         <pubDate>2024-09-19 00:39:57 UTC</pubDate>
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         <title></title>
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         <description><![CDATA[<p>4. 관찰 수행</p><p>관찰한 결과, DNA가 이중 나선 구조라는 것을 알아냄.</p>]]></description>
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         <pubDate>2024-09-19 00:40:26 UTC</pubDate>
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         <author>kgy010710</author>
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         <pubDate>2024-09-26 04:27:56 UTC</pubDate>
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         <title>2</title>
         <author>kgy010710</author>
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         <pubDate>2024-09-26 05:36:30 UTC</pubDate>
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         <title>3</title>
         <author>kgy010710</author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3139650013</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-09-26 05:37:30 UTC</pubDate>
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         <title>4</title>
         <author>kgy010710</author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3139650290</link>
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         <pubDate>2024-09-26 05:37:45 UTC</pubDate>
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         <title>5</title>
         <author>kgy010710</author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3139650691</link>
         <description><![CDATA[]]></description>
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         <pubDate>2024-09-26 05:38:01 UTC</pubDate>
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         <title>6</title>
         <author>kgy010710</author>
         <link>https://padlet.com/kgy010710/oksraeaalzhqiih/wish/3139650862</link>
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         <pubDate>2024-09-26 05:38:06 UTC</pubDate>
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