Salt Water vs Fresh Water

Brine Shrimp are a micro-crustacean that is found mostly in inland saltwater bodies, however, the salinity levels that they live in vary greatly. The conditions that they require can be made at home as the eggs (cysts) of the shrimp are dry, hard shells that can withstand drought and go without water for up to 50 years. This study presents the results of 3 different salinity levelled environments to the Brine shrimp in order to discover a salinity level that produces the most successful hatching rate. By filling 3 Petri dishes with 20mL’s of purified water, each dish contained varying sodium chloride amounts from 15ppt, 25ppt, and

2. What do you think would happen if you watered your houseplants with salt water?

Aquatic environments require different methods for adaptation. The pressure in water increases as depth increases and aquatic organisms have to deal with it. Mobility of small animals versus larger ones help the ones with greater SA:V flow or be moved by currents, which is a disadvantage for bigger animals that have to constantly move. Light limitations also affect living things in water, mostly plants because they have to photosynthesize to grow, and the attenuation of light increases in depth, they have to take advantage of other resources to get the light they need and the nutrients to survive. Salt tolerance is vital; the process of osmosis moves water from high concentration of solutes to low concentration of solutes, if an organism doesn’t have enough salt contents starts losing water and dehydrates

8. Sea salt, they say, contains iodide, but it is silly to pay more and get nothing extra for it. Sea salt is not better than table saltiodine leaves as a gas (sublimes from solid to gas form).

If saltwater is applied to a plant, the plant would shrivel up and die. This is a result of the water moving out of the cells in order to try to balance the concentration of solute compared to inside the cell. The water movement out of the cell would cause the cell to shrink and the lack of water would eventually cause the plant to die.

However, they are made of saltwater, so we cannot use this source of water to drink and water plants. But freshwater sources, such as rivers, lakes, springs, melted snow and underground bodies of water, can be used in irrigation for farmland and for us to drink. [3]

7) What would happen if you applied saltwater to a plant? The saltwater has a lower water potential due to the solute, and therefore water would move out of the plant, dehydrating it.

There are over 3,000 species of plants, and a huge diversity of aquatic life. Some

As fresh water drains from land, it mixes with salt water from an ocean, and this water is called an

3. Water is a precious natural resource in Florida and it is said that supplies are dwindling. Desalinization (removing salt from) ocean water has been recommended as a solution to the problem. Why shouldn’t we drink salt water? Explain.

Audience relevance: We all rely on access to fresh water for our very survival; from drinking water to hydroelectric dams, fresh water is an integral part of your everyday life.

When it comes to fresh water and salt water mixing, it is called an estuary. An estuary is body of water that has rivers and streams running into it with an outlet that leads directly into the open sea. This is where the rivers and streams drop all the sediments, rocks, sand,

A- Salt water is more dense than fresh water, and therefore sinks under fresh water - which is exactly what happens in estuaries, which are areas near the mouth of a river where fresh water and salt water do mix.

1. What is the composition of seawater? The salinity of seawater ranges from 3.3 to 3.7%. When seawater evaporates it leaves behind sodium chloride, better known as table salt. The other components of seawater are acquired through various methods. One of which is weathering. Chemical weathering of rock releases soluble such as salts of sodium, potassium, and sulfur.

“Although ocean water tastes like water with table salt (sodium chloride) dissolved in it, it is a lot more complex than that” (Friese 33). Pure sea water contains a vast amount of dissolved chemicals. It contains everything from sodium chloride to trace amounts of silver and gold. Although the inhabitants of a marine reef aquarium are not going to be effected if the water does not contain gold, they will not live long if all that is added is table salt (Friese 33). Marine salt mixes contain a similar collection of elements that are found in natural seawater.