海底
The Ocean Floor
知道海洋底部不是平坦的——它有山脉、山谷和地球上最深的海沟——最深的地方是马里亚纳海沟，比珠穆朗玛峰的高度还要深。
Know that the ocean floor is not flat — it has mountains, valleys, and the deepest trenches on Earth — and that the deepest point is the Mariana Trench, deeper than Mount Everest is tall
学习证据 / Evidence
- 说明海底有起伏的地形，包括山脉、海脊和海沟。
- 说出马里亚纳海沟是地球上最深的地方。
- 把它的深度与熟悉的事物（如珠穆朗玛峰的高度）作比较。
- State that the ocean floor has varied terrain including mountains, ridges, and trenches
- Name the Mariana Trench as the deepest point on Earth
- Compare its depth to a familiar reference like Mount Everest's height
评估问题 / Assessment
如果{{name}}听说海底有山脉和山谷，能解释海洋底部不是平坦的，并说出马里亚纳海沟是地球上最深的地方——比珠穆朗玛峰还要深吗？
If {{name}} heard that the ocean floor has mountains and valleys, could they explain that it's not flat and that the Mariana Trench is the deepest spot on Earth — deeper than Everest is tall?