地球的圈层
Earth's Layers
知道地球是有圈层的——薄薄的外层地壳、厚厚的炽热地幔，以及位于中心的地核——并且地球内部温度极高。
Know that Earth has layers — a thin outer crust, a thick hot mantle, and a core at the centre — and that the inside of the Earth is extremely hot
学习证据 / Evidence
- 说出地球的三个主要圈层：地壳、地幔和地核
- 解释地壳与其他圈层相比很薄
- 说明地球内部温度极高——足以熔化岩石
- Name Earth's three main layers: crust, mantle, and core
- Explain that the crust is thin compared to the other layers
- State that Earth's interior is extremely hot — hot enough to melt rock
评估问题 / Assessment
如果{{name}}敲开一个熟鸡蛋，能把它和地球作对比，说出三个圈层吗——外面是地壳，中间是地幔，中心是地核？
If {{name}} cracks open a hard-boiled egg, can they compare it to Earth and name the three layers — crust on the outside, mantle in the middle, and core at the centre?