Underwater facts for kids
Underwater refers to anything that is below the surface of a body of water. This includes places like the oceans, seas, lakes, ponds, or rivers. Most of our planet Earth is covered by water, making the underwater world a huge part of our planet.
The bottom of the ocean is known as the sea-bed. Most of the sea-bed is found between 4,000 and 5,500 meters (about 2.5 to 3.4 miles) below the ocean's surface. Just like the dry land we live on, the sea-bed has mountains, valleys, and flat plains, but they are all hidden beneath the water. The deepest spot in all the world's oceans is called the Challenger Deep. It is located in the Mariana Trench and is an incredible 10,924 meters (about 6.8 miles) deep!
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Exploring the Underwater World
Even though people do many things underwater, like scuba diving for fun or work, and even use submarines for travel or defense, most of the oceans are still a mystery. The deepest parts, especially, have not been fully explored yet. Scientists are always finding new things about this amazing hidden world.
Human Activities Underwater
People explore the underwater world for many reasons. Some enjoy it as a hobby, like scuba diving to see colorful fish and coral reefs. Others work underwater, such as marine biologists studying sea life, or engineers building structures. Submarines allow people to travel deep below the surface for long periods, whether for scientific research or for military purposes.
Underwater Discoveries
The underwater world is home to countless animals and plants that are unique and fascinating. Scientists are constantly discovering new species and learning about how they survive in different underwater environments, from shallow reefs to the crushing depths of the ocean floor. These discoveries help us understand more about life on Earth and how to protect our oceans.
Images for kids
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Underwater life on a flat coral reef off the islet Klein Bonaire in the Caribbean Sea
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The world ocean is the most visible part of Earth from space
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Clouds over the Atlantic Ocean
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Samur River in Azerbaijan – In the natural landscape
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An estuary mouth and coastal waters, part of an aquatic ecosystem
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Tektite I underwater habitat with ambient pressure divers using scuba
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The Newtsuit has fully articulated, rotary joints in the arms and legs. These provide great mobility, while remaining largely unaffected by high pressures.
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ROV working on a subsea structure
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Note the bluish cast given to objects in this underwater photo of pillow lava (NOAA).
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See also
In Spanish: Entorno subacuático para niños
