海洋深度分层
Ocean Depth Zones
理解海洋根据深度和光照的不同分为不同的层：靠近海面的阳光层，大多数生物生活在这里；暮光层，光线逐渐减弱；以及完全黑暗的午夜层。
Understand that the ocean has different zones depending on depth and light: the sunlight zone near the surface where most life lives, the twilight zone where light fades, and the midnight zone of total darkness
学习证据 / Evidence
- 说出三个主要海洋层：阳光层、暮光层和午夜层
- 解释光线随深度增加而减弱，直到完全消失
- 说明大多数海洋生物生活在阳光层，因为植物需要光照才能生长
- Name the three main ocean zones: sunlight, twilight, and midnight
- Explain that light decreases with depth until it disappears completely
- State that most ocean life is found in the sunlight zone because plants need light to grow
评估问题 / Assessment
如果{{name}}看到一张显示海洋越深越暗的示意图，能否说出三个主要海洋层，并解释为什么大多数海洋动物生活在阳光照射的海面附近？
If {{name}} saw a diagram showing the ocean getting darker as you go deeper, could they name the three main zones and explain why most ocean animals live near the sunlit surface?