Saltwater Experiment

|populations could be affected by the food supply and the temperature. In fifty years at this level of emissions the level of both marine|

In other words, it takes less energy to raise the temperature of the salt water 1°C than pure water. And in the winter time, adding salt to the ice lowers its freezing point, so even more energy has to be absorbed from the environment in order for it to melt.

Not a quarter, not a third, but half of the planet’s oxygen is made up of elements of the ocean. Oxygen that human life is dependent on in order to survive. By revealing this statistic, people can really start to understand just how detrimental it is to keep the ocean clean and healthy so that it is able to keep providing us with air. However, it has also been noted that “phytoplankton is declining by about 1 percent a year due to warming waters with fewer nutrients”(Johnson). Even though this plant has proven to have existential value to us, it is still being harmed.

“Since the beginning of the industrial era, the ocean has absorbed some 525 billion tons of CO2 from the atmosphere, presently around 22 million tons per day” (Ocean Portal, n.d). This number is expected to increase forevermore as atmospheric carbon dioxide levels increase and the effects of Climate Change worsen. At first, the idea of our oceans absorbing carbon dioxide from the atmosphere may sound great, however, scientists have been quick to learn otherwise. High concentrations of carbon dioxide in oceans can have detrimental effects on the ocean chemistry and marine ecosystems (Hardt; Safina, 2008). Marine ecosystems are greatly complex and depend on every marine organism to function properly, any change can put the whole ecosystem at risk. For example, the increase of carbon dioxide in our oceans is responsible for the dissolving of “brittle star” skeletal parts, which has in effect caused food scarcity for many fish, crabs, shrimp, and other starfish (Leu, 2013). Furthermore, these marine ecosystems are very important to humans- being the primary food source for millions around the world and having an economic market worth trillions of dollars (Hardt; Safina, 2008). Part of keeping these ecosystems safe is to understand how they work and how projected changes can harm marine organisms.

Procedure, Hypothesis, & Observations Hypothesis -I don't have one but my thoughts were there to be no effect of the freezing point of water when salt was added. Procedure/Observations - I took two cups of water, one with added salt . I placed both cups into the freezer and timed it to a minimum of 60 minutes. Checking my results, then I noticed that the cup of clean water, had already

If you add salt to ice with a bit of water it can lower the freezing point of water lowering the temperature enough for it to melt and keep it from freezing again. The salt can lower the freezing point of ice through a process that is called freezing point depression. This works by the ice starting to melt which is making, then if you add the salt, the salt dissolves the water by adding ions that increase the temperature. With the using of salt, it helps melting icy driveways because salt lowers the freezing point of ice.

During the 1990s scientist were able to collect 5,000 different salinity profiles. From their findings they were able to estimate a 20 percent increase in freshwater. Due to this increase there was a rise of fresh water by 8,400 cubic kilometer, which can be compared to the volume of fresh water and ice that is released in lower latitudes from the Arctic each year.

Floras and microbes are additional main biotic mechanisms of many oceanic ecosystems. Microbes act as decomposers for oceanic ecosystems, and they break defunct living matter and transforms it into vitality that is used by other existing organisms in the oceanic ecosystem. Detrivores, which are a type of animal, also eat deceased or putrefying plants and animal matter. Algae, which are autotrophs, appear as the head herbal vivacity and primary producers in oceanic ecosystems. The sunlight transforms the light into energy for nourishment for marine plants. Heat and light are focal abiotic factors discovered in essentially all oceanic ecosystems, consequently oceanic ecosystems has some broaden abiotic mechanisms, comprising viscosity and many more. The power that the bulk of an organism is called buoyancy. The durability of the drive of seawater is called viscosity. These abiotic factors source to the drive of all organisms in oceanic systems. Sunlight pierces the sea exterior only about 65 feet. As there is more salt in the Great Barrier Reef than in other oceanic ecosystems the marine holds less oxygen than the

Have you ever seen those large trucks outside on a snowy day pouring a white substance over the frozen road? You just saw salt: the tiny but mighty sodium and chlorine solute that shares quite a special relationship with ice. Both are translucent and white, yet one can be highly detrimental to the other. Salt works like a parasite on ice, eating away at it until all that is left is a cold, salty puddle of water. However, salt cannot achieve such a feat alone; it needs the help of water.

The ocean is a very delicate ecosystem in which the slightest change of pH or chemical composition will result in devastating results. Between 25 and 40% of anthropogenic carbon emissions have entered the marine area since the industrial age (Sabine et

(Principle number 3). The ocean contains many organisms and ecosystems that contribute to our life on land. These ecosystems function by transferring energy between different trophic levels. Trophic levels are the positions in which organisms are within an ecosystem. The order for this is 1. Autotrophs – things that can create their own food, 2. Herbivores – organisms that eat plants. 3. Carnivores – organisms that eat other organisms and finally 4. Decomposers – organisms which decompose organic material. For example, plants are at the very beginning of the trophic levels. They are labeled as autotrophs since they make their own food with photosynthesis, which we all knew already. This is the same for plants that lay on the bottom of the ocean, they take in the CO2 emissions we create in the atmosphere and take in sunlight to create

Fresh water freezes at 32 degrees Fahrenheit, although the freezing point of salt water is lower.

Anthropogenic activity has led to greatly increased emissions of greenhouses gases. Increased temperatures, acidification and stratification are all affected by increased carbon dioxide (CO2) concentrations. These symptoms of climate change have direct and indirect effects on to marine ecosystems, all of which start at the major primary producers of the oceans: phytoplankton.

The world we live in is so vast and exciting. Seventy percent of our world is liquid water we call the ocean. In the ocean there are many creatures that each are unique in their own way. However, it is possible that in our lifetime, many marine organisms will become endangered or possibly extinct. The loss of these mejestic marine creatures will be caused mainly because of human advancements in which fossil fuels are used to produce energy. Biodiversity is greatly affected by this increase in acidity. As the ocean acidifies, multiple social and economic issues arise. As humans, we rely on the ocean for almost everything. Much of our food, clothing, cleaning products and cosmetics come from the ocean. With the loss of

When sugar dissolves on the ice it interferes with the water molecules. Sugar requires a lower water temperature to melt ice so it has to be colder out for sugar to work. “Sugar will melt ice, but not as effectively as salt because salt breaks down into sodium and chloride ions so when one molecule of salt dissolves into the ice, it will add two components to the solution which provide more interference in preventing the water molecules from freezing.” Salt lowers the freezing point of ice and consequently, the melting point of water, the main component of snow and ice.