These cards help children learn about the five main ocean zones from the surface to the deepest trenches. Each zone has different amounts of sunlight, temperature, and sea life. Epipelagic Zone (Sunlight Zone): The top layer with lots of sunlight, plants, fish, dolphins, and turtles. Mesopelagic Zone (Twilight Zone): A little sunlight, dim and cooler, home to squid and lanternfish. Bathypelagic Zone (Midnight Zone): No sunlight, very dark, cold, and full of glowing deep-sea animals. Abyssop