岩石循环
The Rock Cycle
解释岩石循环：岩浆如何形成火成岩，沉积物被压缩后如何形成沉积岩，热力和压力如何形成变质岩，以及所有岩石类型在地质时间尺度上如何相互转化。
Explain the rock cycle: how igneous rocks form from magma, sedimentary rocks from compressed sediment, and metamorphic rocks from heat and pressure, and how all rock types can transform into one another over geological time
学习证据 / Evidence
- 描述每种岩石类型（火成岩、沉积岩、变质岩）是如何形成的
- 举例说明每种岩石类型及其形成过程（如花岗岩、石灰岩、大理石）
- 追踪岩石样本在岩石循环中可能经历的转变
- 解释地质时间的概念，以及为什么岩石循环的变化非常缓慢
- Describes how each rock type (igneous, sedimentary, metamorphic) is formed
- Gives an example of each rock type and its formation (e.g. granite, limestone, marble)
- Traces a rock sample through possible transitions in the rock cycle
- Explains what geological time means and why rock cycle changes are slow
评估问题 / Assessment
如果 {{name}} 在学校旅行中捡到一块大理石，能解释它最初是石灰岩、是什么让它变成大理石，以及这个过程花了多长时间吗？
If {{name}} picked up a piece of marble on a school trip, could they explain how it was originally limestone, what changed it into marble, and how long that process took?