化石的形成
How fossils form
通过识别岩石构造和岩层中化石的规律，收集证据来解释地形随时间的变化。
Identify evidence from patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time
学习证据 / Evidence
- 解释岩层（地层）是随着时间形成的，最古老的岩层位于底部。
- 描述不同岩层中的化石如何证明不同时期存在的生物。
- 利用岩层中的规律来解释地貌在数百万年间如何变化。
- Explain that rock layers (strata) form over time, with the oldest at the bottom
- Describe how fossils in different layers provide evidence of organisms that lived at different times
- Use patterns in rock formations to explain how a landscape has changed over millions of years
评估问题 / Assessment
如果{{name}}看到悬崖面上的岩层，能否解释底部的岩层最古老，并且其中的化石能说明很久以前那里生活着什么？
If {{name}} sees layers of rock in a cliff face, can they explain that the bottom layers are oldest and any fossils tell us what lived there long ago?