The purpose of this lab was to change pennies from copper to silver to gold, like alchemists have attempted to do in history. Through the data and observations gathered throughout this experiment, it can be concluded that the pennies were not changed into a different element. For example, the density of the penny from 2005; which was the penny that was experimented on to see whether or not it could turn into silver; was 4.62 g/cm3 before the experiment and 4.89 g/cm3 by the end of the experiment. If this copper penny really would have turned into silver, then the density of the penny would be 10.49 g/cm3; which is the density of silver; by the end of the experiment. The penny may have turned silver in color, but this was only because it was plated in the zinc that was added to the beaker of water in the experiment.
The Indian River Lagoon is a beauty to Florida, and a natural landscape, but, it is at risk from pollution. Chemicals, algae blooms, and harmful things that humans do to pollute it, it also puts the animals living in the lagoon at risk of dying, and becoming endangered. The causes of the Indian River Lagoon take effect greatly. Freshwater is also very important, it is a vital life source.
Eutrophication can be found in many of our water resources such as ponds, estuaries, and bays. One region with high areas with eutrophication is in a lake shared by Kisumu, Kenya and Kampala, Uganda. With oxygen depletion and reduced transparency, many Haplochromis fish species have become
Daphnia Magna are small crustaceans that are excellent for observing the effect of depressants on their nervous system. The purpose of this specific experiment is to observe the effect of ethanol, aspirin, and caffeine on daphnia’s heart rate. Not only do these chemicals affect heart rate, but they also affect the frequency of reproduction, number of eggs produced, and body structure. Pesticides similar to these chemicals can be released into the environment and daphnia re useful in monitoring toxicity levels. The agents being tested in this experiment can be administered to determine the effects of hormones, stimulants, antidepressants, and neurotransmitters. The hypothesis for this experiment is that if daphnia are exposed to ethanol, aspirin,
Introduction: The Everglades is a national park that protects numerous of species and endangered species, for example, the Florida manatee, American crocodile, and Florida panther. According to Everglades foundation.Org, the Florida Everglades is the largest subtropical wetland in the United States, an international biosphere Reserve, and home to 73 threatened species are endangered species. The Everglades flows from the bottom of Orlando through Lake Okeechobee South to the tip of Florida Peninsula as well as the east and west coast of Florida, covering almost three million Acres. “ In the past hundred years, people have been digging canals and building dams in the Everglades so they can take water out of it to develop agriculture and build
The experiment consisted of two sub-experiments that when synthesized together, successfully answered our main question. The first of the two sub-experiments focused on collecting data for the creation of a life table in which Daphnia magna were not in the presence of a predator such as Lepomis macrochirus, known in laymen’s terms as bluegill fish. The second of the two sub-experiments focused on collecting data for the creation of a life table as well, but this time the daphnia were subjected to an environment where bluegill fish were present.
A transfer pipette was used to place a single Daphnia magna into the well of a concave slide and any excess water was removed by using a Kimwipe tissue. The use of a coverslip was unnecessary so that the specimen isn’t crushed and killed. The D. magna had enough water to allow its gills to function but not so much that it could’ve actively swim. The specimen’s heart was located using a light microscope using the lowest magnification.
Did you know that “The great lake provides over 40 million people with fresh water for drinking” (Michigan environmental council, 2015). Fresh water all around Michigan is a main Source for Michigan and surrounding areas for drinking water. Drinking Water that comes out of the tap is bad for the human population. In the Drinking water there is so many added pollutants that have adverse effect on the society. The water itself can cause birth defects and cancer. There should be a set of strict regulations that everyone has to fallow of rules that provide repercussions if those regulations are broken. The regulations on the chemicals added to the drinking water to improve drinking water’s quality is adding a hidden danger. These regulations would
In this experiment the rate of Daphina magna feeding was tested by the concentration of algae they were being fed. This experiment was performed in a three-hour lab period and was performed in groups of three. In this specific experiment the concentration of algae was what was being looked at. Many studies have been performed testing a similar study, the three studies that were relevant to this paper were studies regarding the concentration of algae and how it directly affected the feeding rate of the Dahpina magna. Each of the studies had other studies involved including temperate, swimming patterns and much more, but the concentration of food affecting feeding rate is what was focused on throughout these studies. For our
This paper critically analyzes the environmental factors that impact aquatic health in Lake Ontario. In total the nutrient availability and contamination in Lake Ontario has a large negative impact on the lives of the aquatic organism such as Quagga mussels, Cladophora and common fish species.
The topic of this research paper will cover over Ocean Acidification and the effects on marine ecosystems. Ocean acidification is the decrease in pH levels of the Earth 's oceans, due to overbearing carbon dioxide being brought by the atmosphere. The carbon dioxide is drawn by seawater, where the chemical reactions take place, which minimize the pH levels in the ocean, the carbonate levels and the important calcium carbonate which these sea creatures need. When carbon dioxide disperses in this ocean, it causes the levels of acidity to rise towards the the surface, where most shell growth in marine animals have been stopped and has created the cause of reproductive disorders in multiple fish. Part of the problem with ocean acidification is human activity. Ever since the industrial revolution commenced, around one third of the carbon dioxide released by human interference has been absorbed by the ocean, which is one of the reasons of the drastic change in climate as well. Without the ocean absorbing carbon dioxide, the carbon dioxide n the atmosphere would be drastically higher, with possibly increasing the levels of climate change.The point of the research is to see how will the pH affect the organisms in the marine ecosystem and does carbonation affect an organism’s mass and form. Many organisms that are part of the marine food chain are going to be affected by ocean acidification due the levels of acidity deteriorating the calcium carbonate within the animal. It turns out
The ocean is nowadays undergoing numerous environmental issues that further lead to marine pollution. Marine pollution is a very serious environmental issue that most of the countries of the world encounter. Aquatic littering is considered as one of the major causes of marine environment. The misleading use of the marine environment is extremely impacting the marine life and ecosystems. Moreover, the total amount of toxins and debris discharged by human beings is incredibly increasing in today 's world. Most of the waste produced on land is either intentionally or unconsciously discharged into the oceans. Marine pollution and aquatic debris can utterly destroy the oceans causing extinction of the marine creatures. Innovative techniques should be implemented in the law to prevent the marine environment from any further damage. In order to improve the marine environment, the government and the Environment Public Authority of Kuwait should take immediate actions that can influence the society and help in minimizing aquatic debris and pollution.
Pollution of air, water and soil require millions of years to recoup. Industry and motor vehicles exhaust are the number one pollutants. Heavy Metals, nitrates and plastic are toxins for pollution. While water pollution is caused by oil spill, acid rain, urban runoff; air pollution is caused by various gases and toxins