통합과학

[googleapps domain="docs" dir="presentation/d/e/2PACX-1vSQ6HhoFyLt7TtyM-M2Rj0bDfgg__o0c71ShpLIMwf18VpWanqxUTqFBZyUAcdFig/embed" query="start=false&loop=false&delayms=3000" width="960" height="749" /]

[googleapps domain="docs" dir="presentation/d/e/2PACX-1vSVY-nZ_NxbrSsjWykyd9esaEKRDcl7AgVH5Ohc2d4cNEuebd7yr5rs12OYQEJzeQ/embed" query="start=false&loop=false&delayms=3000" width="960" height="749" /]

[googleapps domain="docs" dir="presentation/d/e/2PACX-1vTuDQzN-Id4qOXEvinM6v-l7D7QwF_qv50xImEerpceP9swf9x73byRSBnteINhfQ/embed" query="start=false&loop=false&delayms=3000" width="960" height="749" /]   동영상 내용 중 수정 사항 21" 태양의 나이: 50억 년 ⇒ 46억 년 26" 구성성분: 수소(92.1 %), 헬륨(7.8 %) ⇒ 수소(74.9 %), 헬륨(23.8 %)   https://youtu.be/ilKfYEhxBqs