The World is Just Awesome

  The ocean has accumulated its salt from the rain eroding the rocks on land and the salts flow down rivers into the ocean.  when the water evaporates and turns into rain it leaves the salt in the ocean and therefore has nowhere else to go. so over millions of years we are left with a big ocean with salt.

by brett.

well here is an answer for you!

The ocean is salty because of minerals that are washed into the sea from the land. These minerals come from the rocks and soil rivers. so when it rains water rinses minerals from rocks and soil into rivers and streams the rivers eventually carry these minerals into the ocean. the most common mineral in the seawater is sodium chloride scientists have estimated that there are around 50 billion tons of salt in the ocean. salt also comes from hydrothermal vents which are openings in the seafloor from which not salty water flows into the ocean. If the salt in the sea could be removed and spread evenly over the Earth’s land surface. it would from a layer more than 500 feet thick about the height of a 40 story office building.

by, tiffany

     Oceaning trenches are hemispheric-scale long depressions in the sea floor.  These trenches make up the deepest parts of the ocean. Oddly enough the deepest parts of the ocean are not located in the center of the ocean as many beleive, they are located closer to the edges of the oceans.  There are trenches circling around the whole Pacific ocean.The trenches have lengths of thousands of kilometers, are generally hundreds of kilometers wide, and extend 3 to 4 km deeper than the surrounding ocean floor.  Trenches are formed when two lithospheric plates rub against each other. Some sink beneath another plate and others slide against each other. When these plates rub against another they create depressions that are these Oceanic Trenches.
By: Ricky

     -The gills main purpose is the same as that of a mammal’s lungs, they are both meant to exchange gasses by taking in oxygen, and releasing carbon dioxide.

Saltwater Fish

• Saltwater gills require more energy to function because they have to keep the excess salt out of their system.
• Saltwater fish tanks take a lot more work to start up than freshwater because the fish will die if you don’t have the right pH, salinity, or water temperature.
• Saltwater fish require a variety of foods. Some fish or sea creatures eat dry food while some others eat foods like frozen fish or shrimp, or sometimes even microscopic copepods.

Freshwater Fish

• Freshwater gills don’t need as much energy as saltwater gills to function because they don’t have to worry about as much salt in the water.
• Freshwater tanks don’t need as much work to startup because the fish can live in tap water straight from a sink faucet. They don’t have to worry about certain chemicals nearly as much as saltwater fish do.
• Freshwater fish, for the most part, all eat the same type of food which normally comes in the form of flakes, pellets, or tablets made from the essential nutrients that the freshwater fish needs to survive.

By: chris10

The ocean contains enough salt to cover the entire earth in over 500 feet of salt. The ocean gets its salt from many different places. One type of salt it receives comes from underwater volcanic vents. The rest of the salt comes from different rocks and minerals.
Underwater vents spew salt onto the bottom of the ocean floor. It is this picked up by underwater currents and spread across the ocean.
Another way salt is put into the ocean is by rain. Rain becomes acidic because of carbon-dioxide. When it falls onto rocks it erodes the rock. It then carries the eroded rock into the ocean. The two ions most often found in seawater are chloride and sodium. This makes up 90% of all dissolved ions in seawater

By: Jon

Why don’t all animals water bound live in the ocean together?

There are a tremendous variety of animals and critters that live in Fresh and salt water bound areas or both combined together. Some include such as lakes, rivers, oceans, ponds ETC… they all live in different parts of these bodies of water as well. The animals learn to adapt as their elders did at birth. So for creatures and mammals of the Fresh water we will use a lake. Lakes are very much like oceans they are large bodies of water that have zones/layers. Some may live in one area others two and some in all three. Here are the layers and species of the lakes:

Upper Zone- this is from the shoreline down to be plants stop growing.

Species- the species found in the upper layers of the lakes are bulrushes, water lilies animals, small fish, clams etc….

Middle Zone-Open water there is light penetration here at this zone some plants grow here.

Species- phytoplankton which is food for the fish, small fish, lizards, snakes live here in this area.

Deep Zone- No light at all penetrates this area plants do not grow here.

Species-Much bigger fish live here such as salmon, Trout, Pike etc…

As for the ocean (diversity different water motion, salinity, and depth) here is all the zones/layers and species:

Estuary layer-this is the richest part of the diverse ecosystems. Fresh and salt water combine here.

Species- many plants, insects, and other animals such as bird life live here

Intertidal layer-shoreline of the ocean

Species- plants, animals with a rough tolerance to the pounding and toughness of the waves coming in and out

Continental Shelf- Much warmer water full of light in the area

Species- very many plants, animals live here because of the rich nutrients, phytoplankton and some fish

Ocean zone- no light at all deepest part of the ocean no plants grow.

Species- very big fish live here such as sharks, dolphins, whales etc…

The ocean is very big and full of the unknown; the Puget Sound is both salt and fresh water so sharks as well as pike and other fresh and salt water fish and critters live here. There is a much more variety of sea life in the ocean then in the lakes and ponds. Animals that live in fresh water cannot live in salt if they are put in salt water they will either have to adapt or they will die trying to adapt but they can’t.  this is why animals cannot live together.

By Aubrie

http://www.palomar.edu states that there is 50 quadrillion tons of dissolved solids. if you were to remove the salt from the ocean and spread eveanly across the earth surface you would get a layer more than 500 feet thick.

http://www.enchantedlearning.com/subjects/ocean/Salty.shtml Why is the ocean so salty? As water flows in rivers it picks up small amounts of mineral salts from the rocks and soil of the river beds. This water that is very slightly salty flows int the oceans. The water only leaves by the evaperation, but the salt stays dissolved in the oceans.

By: Jordan

The speed of sound goes about 750MPH (1206KM/H) in the air. In water sound travels about 3,000 MPH (4828KM/H). By comparing these two sound speeds you know that sound travels a lot faster in water. Why is this important its important because it could help us develop better technologies for exploring the ocean or used in warfare. It would help us get a great understanding of the ocean it could have great impact on the human race. This is estimate the speed of sound in water by using this it would give you an idea of how fast is speed of sound in water. This could improve technological advances for radars and sonars.

                                  By Michael

The five oceans of the world are the pacific, Atlantic, Indian, southern ocean, and the Arctic Ocean. The deepest ocean in the world is the Pacific Ocean at the deepest part being the Mariana Trench at 36,200 ft deep. The second deepest ocean in the world is the Atlantic Ocean at the Puerto Rico Trench it is 28,231 ft deep. The third deepest ocean in the world is the Indian Ocean at the deepest part being the Java Trench at 25,344 ft deep. The fourth deepest ocean in the world is the Southern Ocean at the southern end of the South Sandwich Trench at 23,736 ft deep. The fifth and final deepest ocean is the Arctic Ocean at the deepest part being the Eurasia Basin, 17,881 ft deep.

The largest ocean on earth is the Pacific Ocean, at 64,186,000 square miles. The second largest ocean on earth is the Atlantic Ocean at, 33,420,000 square miles. The third largest ocean on earth is the Indian Ocean at, 28,350,000 square miles. The fourth largest ocean on earth is the Southern Ocean at, 7,848,300 square miles. The fifth largest ocean on earth is the Arctic Ocean at, 5,106,000 square miles.

                                                                                          by Steven

ocean  water  All water, even rain water, contains dissolved chemicals which scientists call “salts.” But not all water i tastes salty.Some scientists estimate that the oceans contain as much as 50 million billion tons of dissolved solids. Some people actually go as far as to say that sea salts come from underground mountains, but most scientist say that it comes from chemicals and minerals that are already in the water. As water flows in rivers, it picks up small amounts of mineral salts from the rocks and soil of the river beds. this very salty water then runs into the oceans. There is geologic evidence that the saltiness of the water has been the way that it is for at least a billion years.

by, nichole