A very informative interactive presents ocean zones, estuaries, hot water vents, phytoplankton, coral reefs, sea turtles, kelp forests, and all things that thrive in the ocean.

Oceans represent more than 80 percent of all habitats, yet we know less about them than most other habitats on the planet. The instructor introduces the epipelagic, mesopelagic, bathypelagic, twilight, and midnight zones in the ocean....

Students learn about James Cameron's Challenger Deep dive and about the marine animals that live in different layers of the ocean. They then study the characteristics of the hadalpelagic zone at the bottom of the ocean, and imagine and...

A video and a short multiple-choice quiz on the topic of aquatic ecosystems. It discusses the difference between freshwater and saltwater ecosystems, then explains what the three ecozones are in a marine ecosystem.

Understand the living and nonliving aspects of aquatic ecosystems.