Adv Science

Image: commons.wikimedia.org Summary: This week we started a new unit on ocean currents, in which we will learn how they relate us and the environment.To introduce the topic we watched a Bill Nye video to explain the basics on ocean currents. Wind and salt are the main cause of ocean currents. An ocean current is a stream or river of water flowing through the ocean. Since salt water is heavier than non salty water is pushes the non salty water away making an ocean current. The wind blowing on or with the water moves it creating an ocean current, as well. Another thing I learned was that water in the northern hemisphere flows clockwise while the water in the southern hemisphere flows counter clockwise. It does this because the sun is heats up the equator which makes the water molecules drift apart. Then, they weigh less, so the cold water from the North or South Pole pushes the warm water upwards. The water travels clockwise in the northern hemisphere and counter cloc

Dear Editors of the Gray Times,      As you know, fish have been drastically dying off over the last five years in the Gray Area at a rate of one thousand per year. Many have been blamed, but we have all put off naming the real culprit. I would like to inform you that I have caught the person responsible for the fish kill. The culprit who has caused the fish to die is Avery Wun. The oil and carbon dioxide from Avery Wun's cars are killing the fish. In the Emergency Meeting of the Gray Area Board of Supervisors, Mandy Lyfbotes stated that cars drip oil. As well as that, some people change their own car oil and dump it into the gutters. Both the dripping and the dumped oil end up in the Gray Bay. Acid rain is a big problem caused by Avery Wun. Her car releases carbon dioxide which assists the creation of acid rain. Acid rain effects the fish in a negative way. Avery Wun has been causing the fish to die just by driving around Synchrony City.      The oil from Avery Wun's car

Image: en.wikipedia.org Summary: We continued to run tests to determine what is killing the fish in Synchrony City. We ran three tests on James Pond, phosphates, water life, and birdwatching. Those tests pointed toward the golf course as the culprit because they indicated the phosphates had quite a big effect. The phosphate test results showed that the golf course drainage has too many phosphates. The water life test results showed that there are blackfly larva, leeches, and aquatic worms. Having only this water life in the pond means that the pond is too low in oxygen. After that, when we did the birdwatching test I realized why the kingfisher population is so low today and why the duck population is so high. The kingfisher eats fish, and in the last five years the fish have been dying off which caused the kingfisher population to decrease. The ducks eat plants, and if the phosphates help the plants grow it explains why the duck population is increasing. All of that

Image:  commons.wikimedia.org Summary: This week we continued trying to find what was causing the fish to die in the Gray Area. We looked at two different files, the acid rain and sediment files, to see if they contributed to the death of the fish. We ran some tests to determine the acid level in each body of water in the Gray Area. Before the experiment, we needed to know some background information on acid rain. I learned the smaller the number the concentrated the acid is. I also learned that there are two main types of acid rain, nitric acid rain and sulfuric acid rain. The main cause of nitric acid rain is cars and trucks, while the main cause of sulfuric acid rain is electric utilities. The tests showed that the acid was mostly in the Rafta River Area Soil Run-Off. This made me think why is it more acidic in some places rather than others, but as I continued to read the files I understood more. The files stated that surrounding the Rafta River is granite can