Salt water is water that contains a certain amount of salts. This means that its conductivity is higher and its taste much saltier when one drinks it. Salt water is not suited to be used as drinking water, because salt drains water from human bodies. When humans drink salt water they risk dehydration. If we want to drink seawater, it needs to be desalinated first. Salt water can be found everywhere on the surface of the earth, in the oceans, in rivers and in saltwater ponds. About 71% of the earth is covered with salt water.
Freshwater is water with a dissolved salt concentration of less than 1%. There are two kinds of freshwater reservoirs: standing bodies of freshwater, such as lakes, ponds and inland wetlands and floating bodies of freshwater, such as streams and rivers. These bodies of water cover only a small part of the earth's surface, and their locations are unrelated to climate. Only about 1% of the earth's surface is covered with freshwater, whereas 41% of all known fish species live in this water. Fresh water zones are usually closely connected to land; therefore they are often threatened by a constant input of organic matter, inorganic nutrients and pollutants.
A More Scientific Difference:
Salts (both ordinary table salt and other salts) are chemicals that fall apart into electrically charged particles (called ions) in water. One big difference between salt water and plain water is that these ions make the saltwater conduct electricity much better than pure water.
In addition to water (made up of hydrogen and oxygen atoms - H2O), seawater in the ocean has more than 70 elements dissolved in it but only six make up more than 99% of all the dissolved salts and all occur as ions - that is, electrically charged atoms or groups of atoms: Sodium (Na+), Chloride (Cl−), Magnesium (Mg 2+), Potassium (K+), Sulphate (SO4 2−) and Calcium (Ca 2+).
One of the really neat things about saltwater is that things float in it more easily than in regular water. For example, there's an especially high concentration of salt in the Dead Sea, so it's very easy to float there.
Sources: http://www.food-info.net/uk/qa/qa-wat06.htm
http://www.cliffsnotes.com/WileyCDA/Section/What-is-the-chemical-composition-of-saltwater-.id-305406,articleId-8202.html
if you were smart enough you should know saltwater has salt and freshwater doesnt
Saltwater Fish live in the oceans and there is salt in the water. Freshwater Fish live in lakes streams rivers etc. and have no salt in the water.
Most fish dwell in either salt water or fresh water; both environments pose special problems for the fish. In fresh water, the concentration of salt in the water is much lower than that of the fish's body fluids. By osmosis, water enters the fish while salt escapes from it. Ocean water has a salt concentration higher than the body fluid of the fish.
If you drink too much salt water it can kill you. You should'nt even drink it. Salt water is saline water and it is not safe to drink. Water on the other hand is needed for you to survive. Salt water is contaminated.
Hmmmmm well i think that saltwater fish live in saltwater and freshwater fish llive in freshwater!
saltwater has salt in it, freshwater does not.
I think marine aquariums are saltwater unlike freshwater that do not have saltwater
Maybe that saltwater animal can endure hard water and freshwater animals can't.
The same as in the ocean
The fact that a saltwater ecosystem has salt in it. 'salt'water ecosystem
seawater is salty and dirty and freshwater is clean and purrified
saltwater will corrode the aluminum and metal from an engine more than freshwater will. Therefore engines used in saltwater need sacrificial anodes to be the vulnerable part, thus protecting the engine.
Freshwater mussels live in rivers, while saltwater mussels live in oceans. Even though it is mussels, it differs a lot. Freshwater mussel and saltwater mussels hunt different things, because they live in different places.
freshwater lake has no salt and saltwater has many salt particles
Certain freshwater fish can survive saltwater conditions; examples are black mollies, mono's and scats. All of these fish aren't truly freshwater or saltwater, they are Brackish. Brackish is between freshwater and saltwater, and so these fish are highly adaptable.
umm the salt water is used to ahving salt in its natural habitat and the fresh water is not
salmon