Oceans are a large deep place with water.The Pacific Ocean is the biggest. Sea grass grows on the bottom of the Ocean. Oceans can be found all over the world. Ocean crabs have hard shells. Kelp is a plant with long leaves and fish can hide in it.
Many kinds of animals can live in the Ocean. Many animals don't have backbone. Fish breathe with gills. Octopous has no shell or skeleton. Ocean mammals breathe with lungs. Ocean birds have lots of fat to keep them warm in the night.