Science
Ocean Life
Conceptual
7–9 yrs
Ocean Depth Zones
海洋深度分区
Description
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
Mastery Evidence
- 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
Assessment Prompt
If your child 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?
