Spongebob's home is located in the OCEAN, on the seabed. The OCEAN is a large body of salt water that covers most of the Earth's surface and is home to many different species of marine life. The seabed is the bottom of the OCEAN, where many creatures live and feed. The SEA is a smaller body of salt water, usually found near land, and is also home to many different species of marine life. Together, these three terms describe Spongebob's home.