ESS1C -地球的历史


In this video Paul Andersen explains in more detail the history of the Earth. He shows how the history of the Earth is written in the rocks that are built up over time. Fossils allow us to compare different rock layers relative to one another and the absolute radiometric dating allows scientists to identify the specific age of individual rocks.

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下一代科学标准地球科学学科核心理念1C:地球的历史

在这段视频中,保罗·安徒生更详细地解释了地球的历史。他展示了地球的历史是如何写在岩石上的,这些岩石是随着时间的推移而形成的。化石可以让我们比较不同岩层之间的相对关系,而绝对放射性定年法可以让科学家们确定单个岩石的具体年龄。