Together, they can be seen as one world ocean because they have no real borders, and water flows freely between them. Water has a very slight blue color that can only be seen when there is a lot of water. As evaporation happens, it begins cooling, and if the water evaporates very quickly, the water becomes saltier. [3] More than a million tons of herring are caught every year in the North Pacific and North Atlantic, and almost eight fish out of ten fish are eaten as food for humans. That happens throughout the day. They are affected by sunlight, temperature, water pressure, and water movement. Seaweeds, which are plantlike forms of algae, are plentiful as well. Some content of the original page may have been edited to make it more suitable for younger readers, unless otherwise noted. To save this word, you'll need to log in. Large amounts of ocean water move around Earth in patterns called currents. 1. In some places, deep cracks called trenches cut into the ocean floor. Kids.Net.Au - Dictionary > Definition: ocean . Corals and sea anemones look like plants, but they are animals, too. But animals also can be found in deep water, including within the oceans’ deepest, darkest trenches. According to the FishBase.org website, there are 33,200 known species of fish, and many of them live in the oceans. At the bottom of the basins are large, flat plains. )—strongly suggesting non-Indo-European origin. They also provide minerals, oil, and natural gas. The ocean floor has many levels. Parts of the ridges contain active volcanoes. The world’s oceans are important to life on Earth. The tiniest animals are a form of plankton called zooplankton. Some examine the quality of the water and the way the water moves. Warm currents tend to bring warm weather and rain to nearby land. The Southern ocean is also called the Antarctic Ocean, because it covers the area around Antarctica. The water doesn't actually travel with the wave, but only moves up and down. [3] Below this surface zone is a layer of sudden temperature difference, called a thermocline. In shallow water, you may find lobsters and crabs. [2] Many of these fish are a fine source of protein, so many people eat them. The ocean’s deepest point—about 36,000 feet—is the Mariana Trench in the western Pacific. See the full definition for ocean in the English Language Learners Dictionary, Thesaurus: All synonyms and antonyms for ocean, Nglish: Translation of ocean for Spanish Speakers, Britannica English: Translation of ocean for Arabic Speakers, Britannica.com: Encyclopedia article about ocean. Delivered to your inbox! The Gulf Stream is a warm current that runs north along the eastern coast of the United States. [1] Tides are another way that ocean water moves. We then see the reflected light as the color of water. These large ships have libraries, hospitals, schools, repair (fixing) shops and other things that are needed for fishermen and their families. The surface part of the ocean, also called the mixed layer, is not much colder even when we go deeper down. Small plant organisms that live near the surface and use sunlight to produce food are called phytoplankton. Search the Kids Internet . History Biography Geography Science Games. The Atlantic is the second biggest ocean in the world and is between the continents of America and Europe and Africa. Improved homework resources designed to support a variety of curriculum subjects and standards. Together, the oceans are like one "ocean", because all the "oceans" are joined. In science, a wave is defined as a transfer of energy. Content of this web page is sourced from wikipedia ( http://simple.wikipedia.org). They do not require energy from the sun to survive, because they use chemicals from deep inside the Earth (see hydrothermal vent). More interesting Facts about the Pacific Ocean for Kids here. [3], https://wiki.kidzsearch.com/w/index.php?title=Ocean&oldid=4985100. Top ten ocean facts. However, the main cause of the blue or blue/green color of the oceans is that water absorbs the red part of the incoming light, and reflects the green and blue part of the light. This website uses cookies to help deliver and improve our services and provide you with a much richer experience during your visit. The average depth of the ocean is 12,400 feet. They contain almost 98 percent of all the water on Earth. The ocean is divided up into 5 major oceans, but they are actually all connected together. The deepest point is the Mariana Trench, being about 11,000 metres (36,200 feet) deep. This is because there are more plants and animals to eat near the water’s surface. Gentle breezes create ripples. The deep ocean is characterized by cold temperatures, high pressure, and complete darkness. Thermoclines may happen only at seasons or permanently, and may change depending on where and how deep it is. Fishing industries are very important because they make jobs and give food to millions of people.

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