This educational video provides a comprehensive introduction to the Earth's oceans, explaining why our planet looks like a "giant blue ball" from space. It breaks down the global ocean into its five major named regions—Southern, Indian, Pacific, Atlantic, and Arctic—while emphasizing that they are all part of one continuous body of salt water. The narrative transitions from geography to marine biology, exploring the diverse habitats found within the ocean, from icy arctic waters to warm tropical coral reefs. The video dives into the biological diversity of marine life, starting with often-overlooked ocean plants. It highlights the critical role of microscopic phytoplankton, alongside visible flora like seagrass and seaweed. The tour of marine life continues up the food chain, showcasing animals ranging from tiny krill to massive whales, and detailing the bustling ecosystem of coral reefs, described as "underwater jungles." It also notes the connection between the ocean and land-based animals, specifically seabirds that rely on the ocean for food. For educators, this resource serves as an excellent primer for units on Earth science, habitats, or biodiversity. It visually demonstrates complex concepts like the microscopic scale of plankton and the vastness of global geography in an accessible way. The clear narration and distinct categorization of plants, animals, and habitats make it a versatile tool for vocabulary building and initiating discussions about ocean conservation and interconnected ecosystems.