...During the 1950’s it was an interesting period in the history of America. It was just after World War II ended and the generation of “Baby Boomers” was just growing. Therefore around this time period is when society started to change and grow. Men and women were being treated unequally during this time period. Women starting to enter the workforce, but it were typically the men, who were the breadwinner and the women were the homemakers. So many women had to suffer through men for many years of inequality for it to improve. I am going to analyze the difference of how the housewife’s roles were being portrayed in the 1950’s television in America. The American film Salt of the Earth 1954 is a very interesting concept of feminism and political...
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...Salt Is More Than a Four-Letter Word On today’s Words and Their Stories we talk about a common word, a small word, but a word that is completely necessary for human life. In fact, without this simple, everyday material, all humans would die. Scientists know it as sodium chloride. We know it as salt. You may think, salt is just a simple cooking element we shake on our food for a little extra taste. But salt is much more than that. Without salt our muscles would not move. Our nervous systems would not operate. Our hearts would not beat. Salt means life. But do not think rubbing salt in a wound will help. Doing that would be painful and not heal the wound. To rub salt in a wound is an idiom that means to purposefully make a bad situation worse. Early humans got the salt they needed to stay alive from the animals they killed. But advances in agriculture led to a diet low in salt. So, humans needed to find others sources. Those who lived near the ocean or other natural sources for salt were lucky. Those who did not had to trade for salt. In fact, people used salt as a method of payment in many parts of the ancient world. The word “salary” comes from the word “salt.” Salt also played an important part in population movement and world exploration. Explorers understood that if they could keep food fresh, they could travel longer distances. So they used salt to preserve food and explored the world. Salt meant movement. Salt...
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...from plants. Condensation is the process where the water vapor from evaporation turns into liquid water. Condensation is important in the water cycle because it is responsible for the formation of clouds. These clouds produce precipitation. Precipitation is the process where water is released fro the clouds back to the surface in the forms of rain, freezing rain, sleet, snow, or hail. Runoff is the draining away of the water from precipitation. What water can we drink on earth?...
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...truly happy. As we can imagine, this immediately captures the attention of his vast audience. And yet his opening words must seem contradictory to many. Directing his comments to his disciples, Jesus begins: “Happy are you poor, because yours is the kingdom of God. Happy are you who hunger now, because you will be filled. Happy are you who weep now, because you will laugh. Happy are you whenever men hate you . . . Rejoice in that day and leap, for, look! your reward is great in heaven.” This is Luke’s account of the introduction of Jesus’ sermon. But according to Matthew’s record, Jesus also says that the mild-tempered, the merciful, the pure in heart, and the peaceable are happy. These are happy, Jesus notes, because they will inherit the earth, they will be shown mercy, they will see God, and they will be called sons of God. What Jesus means by being happy, however, is not simply being jovial or mirthful, as when one is having fun. True happiness is deeper, carrying the thought of contentment, a sense of satisfaction and fulfillment in life. So those who are truly happy, Jesus shows, are people who recognize their spiritual need, are saddened by their sinful condition, and come to know and serve God. Then, even if they are hated or persecuted for doing God’s will, they are happy because they know they are pleasing God and will receive his reward of everlasting life. However, many of Jesus’ listeners, just like some people today, believe that being prosperous and enjoying pleasures...
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...universe in his essay titled Can We Know the Universe? Reflections on a Grain of Salt. The word “know” is an action verb with both transitive and intransitive meanings. It is the intransitive form that lacks explanation. Science can explain the “how” and the “why,” but it cannot bring meaning to either. Science and faith are both required for a complete picture of the universe. To Know, or Not to Know: That is the Question I have been a student of Carl Sagan since my youth. His way of explaining very complex scientific facts and theories spoke at my level. I can still remember how he compared human civilization to the age of the universe: if the age of the universe were a 12-month calendar year, recorded human civilization would be represented as the last 10-seconds of that year. Wow! I could get my brain around that idea. This seemed to be the answer to all the science, mathematics, and English questions I had as a high school student trying to make sense of it all. Once again Carl Sagan applies his ability to bring the very complex to the level of the average junior scientist in his paper titled Can We Know The Universe? Reflections on a Grain of Salt. In his essay, he uses a single grain of salt to illustrate that there are more sodium and chlorine atoms in that grain of salt then there are neurons in the human brain. There are some 10 quadrillion atoms in a grain of salt, but only about 100 trillion neurons in the human brain. The implication is that...
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...kind of shark did not have the claspers on the male sharks that are used to mate with female sharks even without having these two key parts to the shark this species of shark survived for over a million years. The modern sharks of the day did not become to be until about 65 million years ago when another global catastrophe happened that destroyed a mass number of species to include the dinosaurs and the sharks that survived this include the species of sharks we have today. Most of the sharks up to this point have been predators but about 65 to 35 million years ago there was group that evolved into a breed of filter feeding sharks that came about on earth. The most common today are the Whale shark and the Basking shark. One of the most interesting modern sharks is the bull shark because it has evolved to be able to breath in fresh and salt water and being able to do this is called osmoregulation. Doing this allows for the bull shark to be able to maintain a constant concentration of water in its body even when the outside environment causes it to lose or gain water. The bull sharks environment normally is the ocean where there...
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...Generally speaking, when we experience multiple circumstances in our lives and we utilize our faith to get through those circumstances we develop a sense of compassion. Even more so with other people experiencing their circumstances and exercising their faith to get through their struggles. Yahweh has compassion on us when we are going through our struggles. He does not like to see us upset, hurt, or crying. Having compassion for one another should be equal to loving your neighbor as yourself. In doing this we put on display a character of God. If, in the event that we can all be compassionate with one another while going through the circumstances in our lives, we begin to become the salt of the earth. We are giving flavor to one another....
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...Water is one of basic requirements for living things to survive. Our Earth is consists of about 70% of water (The National Aeronautics and Space Administration (NASA), 2007). According to American Water Works Association (2002), 97% of water on Earth is salt water, which consists of salt and other minerals. Human beings cannot consume salt water and it is hard to remove salt from salt water. It costs a significant amount of money to remove salt from salt water. Glacier ice at the North and South Poles are made up from water, which is 2 % from the water of Earth. Although glacier ice contains fresh water, it takes time to melt and difficult for living things to get the sources. Therefore, human beings only left less than 1 % of water can be used for daily life purposes such as drinking, transportation and cooking. Water treatment is...
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...salinity as the position of latitude changes. Salinity is a measurement of how much salt concentration that can be found in the ocean water. It affects characteristics of water quality and has a tremendous impact where plant and animal life can flourish. The degree of salinity directly relates with surface temperatures in the ocean. In areas where there are higher temperatures, there will be a large amount of evaporation. As a result, the salinity of the ocean water will be higher. Additionally, rainfall is another factor which will affect ocean salinity (Lutgens, Tarbuck, & Tasa, 2011). If I were to explain this in layman’s terms, I would rationalize this solution in the following way. If I used a 50 gallon drum and filled it with 30 gallons of water and added 1 pound of salt, this mixture would have a 30 to 1 ratio of water to salt. If I then left the filled drum in 100º F of direct sunlight for one week, a portion of the water in the drum will have evaporated and the degree of salt in the solution would be higher. However, if I were to do the same experiment for a one week period with cooler days, and added 10 gallons of water to the drum, the salinity of the solution would be less. Additionally, other influences from nature such as rivers, volcanoes, and select types of animal and plant life assist in keeping the water at consistent salinity levels. This would indicate that the overall levels of salt in sea water remain unchanged. As a result, the water which is at the equator...
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...Globe- A spherical representation of the earth or of the constellations with a map on the surface. Map- A diagrammatic representation of an area of land or sea showing physical features, cities, roads | Latitude- The angular distance of a place north or south of the earth's equator, usually expressed in degrees and minutes.Longitude- The angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial...: "at a longitude of 2° W"; "lines of longitudeEquator- An imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheresNorth Pole- also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. It should not be confused with the North Magnetic Pole.South Pole-also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface. It is the southernmost point on the surface of the Earth and lies on the opposite side of the Earth from the North PoleInternational Dateline-An imaginary line through the Pacific Ocean roughly corresponding to 180° longitude, to the east of which, by international agreement, the calendar date is one day earlier than to the west. 1. Prime Meridian-A planet's meridian adopted as the zero of longitude...
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...Science Chapters 11 and 12 Review Definitions Salinity- a measure of the quantity of dissolved salt in water. Concentration- a measure of the quantity of dissolved substance contained per unit volume of substance. Desalination- the technology of removing salt and other minerals from the water. Contaminant- an undesirable substance in a mixture. Fertilizer- a substance used to provide nutrients to plants usually for the purpose of increasing crop production. Herbicide- a chemical substance used to kill or slow the growth of certain plants; often used to kill weeds that compete with crop plants, Pesticide-a chemical substance used to kill animal pests; often used to kill insects that damage crop plants. Turbid- not clear; containing tiny specks...
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...react even with weak Bronsted acids such as water – The rate of reaction depends upon the acidity of the medium 2Na + 2H2O 2Na + 2EtOH 2Na + 2NH3 2NaOH + H2 2NaOEt + H2 2NaNH2 + H2 – very slow reaction in absence of catalyst Alkali metals and liquid NH3 Alkali metals react very slowly with liquid ammonia – however, they typically dissolve rapidly in ammonia to form highly colored solutions Na(s) --(ammonia)--> Na(am) + e-(am) – fast 2e-(am) + 2NH3 2NH2- + H2 – slow in absence of catalyst 2 Sodide anions and electrides 2Na(s) + C12H24O6 [Na(C12H24O6)]+Na– complexing or chelating agent is used to stabilize the cation » Na- is the sodide anion. It is the most stable alkalide ion Other complexing agents have been used to form solid salts where e- is the anion – electrides Lithium Lithium is the most reducing of all the alkali metals – but not the most reactive Unlike the other alkali metals it reacts with nitrogen to form a nitride Used in aerospace alloys, greases, batteries and antidepression medication Organometallics of lithium are important 3 Sodium From the electrolysis of a CaCl2/NaCl eutectic A very powerful reducing agent Used to produce metals like Ti and Zr • TiCl4 + 4Na 4NaCl + Ti Used in the production of antiknock additives – tetraethyl lead etc. Oxides of the alkali metals Lithium forms a simple oxide on...
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...Do all liquids evaporate at the same rate? Evaporation is when a liquid turns into a gas. The molecules move and vibrate so fast that they go into the atmosphere as molecules of water vapor. Evaporation is very crucial in the water cycle. The hotness from the sun powers the evaporation procedure. Water starts to evaporate at about 32 degrees Fahrenheit but it occurs gradually. As the temperature rises, the evaporation starts happening quicker. So the warmer it is the faster evaporation happens. Evaporation rates also depend on the quantity of liquid there is. If there is little water in a place than less water is going to be evaporated from that area. If there are large amount of liquids in an area, a lot of water is going to be evaporated....
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...Science Form 1 note GOOD LUCK Teacher zaidi@maher2010 CHAPTER 4 : THE 4.1 1. 2. 3. Air 1. 2. 3. 4. VARIETY OF RESOURCES ON EARTH THE DIFFERENT RESOURCES ON EARTH Human beings, animals and plants need food, water, air and shelter in order to survive. The Earth has the resources needed to sustain life. The resources are air, water, soil, minerals, fossil fuels and living things. Air is needed by all living things to survive. The atmosphere is a layer of air that envelops the Earth. Air is a mixture of gases. Air contains gases such as oxygen, nitrogen and carbon dioxide. Oxygen and carbon dioxide are two very important gases that support life on Earth. a. Oxygen i. Used for respiration by living things ii. Used in combustion of materials iii. Used in industries iv. Released during photosynthesis. b. Carbon dioxide i. Used by green plants to carry out photosynthesis ii. Used in fire extinguishers iii. Released during respiration and combustion. Water covers a total of about three quarters of the Earth. The sources of water are oceans, seas, rivers, lakes, rainfall and ground water. Importance of water a. To animals/human i. It provides a medium for chemical process and body metabolism ii. It is the main component of the blood iii. It transports nutrient to all cell in the body iv. It caries excretory products to the kidneys for excretion. v. It helps to control the body temperature. b. To plants i. It helps to maintain the turgidity of plant cells. ii. It is used...
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...------------------------------------------------- Freshwater ecosystem From Wikipedia, the free encyclopedia Freshwater angelfish Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They include lakes and ponds, rivers, streams, springs, and wetlands. They can be contrasted with marine ecosystems, which have a larger salt content. Freshwater habitats can be classified by different factors, including temperature, light penetration, and vegetation. Freshwater ecosystems can be divided into lentic ecosystems (still water) andlotic ecosystems (flowing water). Limnology (and its branch freshwater biology) is a study about freshwater ecosystems. It is a part of hydrobiology. Original efforts to understand and monitor freshwater ecosystems were spurred on by threats to human health (ex. Cholera outbreaks due to sewage contamination). Early monitoring focussed on chemical indicators, then bacteria, and finally algae, fungi and protozoa. A new type of monitoring involves differing groups of organisms (macroinvertebrates, macrophytes and fish) and the stream conditions associated with them. Current biomonitering techniques focus mainly on community structure or biochemical oxygen demand. Responses are measured by behavioural changes, altered rates of growth, reproduction or mortality. Macroinvertebrates are most often used in these models because of well known taxonomy, ease of collection, sensitivity to a range of stressors, and their overall value to the ecosystem...
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