Free Essay Examples on Sciences

Learning statistics is viewed as an essential subject for every student. It is also crucial to do a reflection about statistics. The author will talk about their experience of learning the necessary skills for analyzing data and predicting possible outcomes. The statistics essay sample is going to speak on the author’s statistics and probability reflection. Introduction I have extensively studied…

Many scholars consider Italy to be the birthplace of human culture and the cradle of civilization as we know it. Lying under the bright hot sun of the southern part of Europe, Italy has been basking in scrutinizing public attention for as long as it has existed. It is one of the key players in the arena of world importance.…

Spatial planning is one of the issues that are of great concern to policy-makers in Belgium. Currently, this country is strongly affected by such trends as increasing population, the growing necessity to protect cultural heritage, and transformation of former industrial zones (Gropas 2014). Therefore, it is vital for local communities to adjust to these factors and become more sustainable in…

Conversation Analysis (CA) is the technique used to investigate and analyze the structures and processes of social interactions between human beings. CA is primarily focused on casual conversations but it also deals with the non-verbal forms of social interaction. CA’s research methodologies have evolved to include advanced forms of social interactions such as the ones that occur at courts of…

A random sample presupposes that all the elements of a particular frame are given the same selection probability. A random sample can be of great use in creating and analyzing surveys carried out among the customers of a particular company. A stratified sample is probabilistic. It is utilized when every single element is considered unique, and therefore, the samples cannot…

Definition of Critical Discourse Analysis (CDA) Kramer (2007, 93) defined critical discourse analysis as a system of analysis that “attends to discreet portions of the language with a particular socio-historical context with an aim of providing a multi-layered analysis of how the language operates communicate surface level language as well as underlying dynamics of interpersonal relations, cultural traces, institutional influences,…

Abstract For centuries, people had been marveling at the phenomenon of northern lights, attempting to explain them in the ways available to them: through legends, myths, and supernatural forces. Northern lights, or auroras, still represent a source of awe, and many go on special tours designed to provide the observers with the best view of the lights. The purpose of…

Abstract The phenomenon of the water exchange between the Baltic and the North Sea attracted the attention of numerous scientists because their waters meet without mixing. Such thing is observed mainly because of the difference in density, but a range of other factors also plays a significant role in this perspective. Thus, it is critical to discuss the geography of…

Introduction: Global Warming Is Coming The issue of climate changes not new; it has already been on the agenda of the world ecologists in 1990s, and in 2010s, the issue seems to have gained a new significance. The phenomenon is traditionally defined as a “process strongly affecting the water resources management as well as the flood frequency of the extreme…

Introduction There is a close relation between field research and qualitative research. However, the observations made while conducting field studies may either be presented as quantitative or qualitative data or both. The data recorded by field investigators are highly dependent on whether it is qualitative or quantitative. Qualitative observation This is detailed data recorded in a field study at a…

Experiment Description Introduction Identifying the flow rates of liquid in a specific environment is a complicated task. However, the adoption of the Venturi Flow Meter contributes to acquiring rather accurate results. Purpose The purpose of the experiment is to understand the principles of flow measurement and to learn to apply the essential principles and formulas to a practical task. Additionally,…

Evidence of dark matter- the motion of galaxies within clusters Galaxy clusters are the leading bound formations in the cosmos. They are the best structure in which to view the impact of the dark matter. The dark matter occupies most of the space in the galaxy clusters. The dark matter is a gravitational mass, which is comprised of exotic elements…

The region of Central Asia has been a focus of the world’s political and economic attention due to its rich oil and gas resources. Ever since the 19th century when the natural riches of the area were first detected the region became a target for the dominant powers of the world such as the USSR and, after that – the…

Abstract For centuries, people across different civilizations had been terrified by the display of power that volcanic eruptions present, and they interpreted them as a sign of wrath and vengeance of gods. Clearly, with the progress of the modern science, volcanoes have been demystified; particularly, the development of the plate tectonics theory in the 1960s has played a major role…

Introduction The contribution made by Muslim mathematicians towards Western civilization cannot be underestimated. Unlike other religions where dogmas are not linked to science, Islam and science are correlated (Ahmed 63). Muslims have contributed greatly to the development of modern science especially in the area of algebra. Muslim mathematicians are the inventors of the Arabic numeral notation and the decimal system,…

Introduction The research under analysis is aimed at the examination of the epidemiology of nosocomial infections in the framework of the Fiji region. The study was carried out by the local health care workers in the Colonial War Memorial Hospital that has the largest Intensive Care Units (ICU) adult ward in the area. According to the researchers, their primary concern…

Introduction: The Use of T-Tests in Nutrition Studies Used to find out whether there is a difference between two groups of numbers, a t-test is an efficient means to conduct a mathematical analysis (Keller, 2011). Obviously useful in a number of fields, a t-test is essential for the evaluation of a specific issue. Therefore, when it comes to people’s health…

Introduction Isaac Newton was an ancient scientist and a great mathematician who is credited for the invention of several scientific theories. Newton is credited for coming up with theories that explain the nature of the universe ranging from the theory on the force of gravity to the theory of inertia. The theories by Isaac Newton changed peoples’ view of the…

Introduction Do you believe that the human species is unique? Evolutionary scientists have claimed that human species emanated from ape-like creatures, but the truths about such claims have remained controversial. However, scientific studies have compared human species to other species and noted substantial uniqueness in terms of personality, judgment, and abstract thinking and others (Hunt and Colander 1). Creativity Humans…

The article under consideration Thousands of Birds Found Dead along Alaskan Shoreline is written by Seth Kovar and Steve Almasy. It addresses the relevant issue, namely the death of the birds in Alaska because of starvation. However, it should be highlighted that the primary reason is somewhere deeper. The major purpose of the paper is to evaluate the presented information…

Food safety constitutes proper preparation, storage, and preservation of all foods. According to the United Nations Asian and Pacific Center for Agricultural Engineering and Machinery (APCAEM), an upsurge in international trade on agricultural products has made food safety a major concern. Furthermore, food safety is becoming a serious policy matter due to rigorous agricultural activities, pollution and man-made, and natural…

The exploration of space has always set people’s imagination on fire. Popular science fiction only added to the excitement of the humankind, making people wonder what wonders the Universe has in store for its explorers. However, focusing on the unknown and the mysterious that the outer space concealed, people are apt to forgetting that the Earth also has a range…

Marine pollution is a sad yet integral part of the 21st century reality. A range of technological advances and solutions for economic issues pose a tangible threat to environment, and oceans are by far the most vulnerable element of the latter. A recent marine pollution issue shows in a very graphic way that the safety of the current technology should…

South-Eastern Asia is one of the most actively developing regions in the world. In spite of the fact that the majority of countries in this region are traditionally discussed as underdeveloped in relation to the economic and political factors, the situation has changed significantly during the 2010s (Butts, Mitchell, & Berkoh, 2012, p. 91). Today, Singapore, Indonesia, Thailand, and Malaysia…

Introduction Measures of central tendency are values that fall in the midline of a given data set (Dodge, 2003). Measures of central tendency are often used in research to get an idea of where most data values lie. Other data measures that are closely related to measures of central tendency are variance and standard deviation. The most commonly used measures…

There are various speculations about the possibility of a significant natural disaster that can take place in California in the near future. In particular, it is often assumed that this state may eventually fall into the ocean due to the influence of some forces. One should keep in mind that in the course of the last two centuries, this region…

Latent heat is the energy that is accumulated or released in a specific thermodynamic system as a result of a constant temperature process (Lutgens and Tarbuck 375). The aforementioned process can be observed in the course of a change of state of matter and the following release or accumulation of energy. In contrast to melting, which requires that a substance…

A mercury barometer consists of a glass tube with a small reservoir at the bottom. A small amount of mercury fills the reservoir. As soon as the barometric pressure changes, the mercury in the tube goes either higher (with an increase of the pressure) or lower (as the pressure falls). The marks on the side of the glass allow for…

Recent Earthquakes It is possible to provide several examples of earthquakes that took place during the past six months. For example, one can mention the Iquique earthquake that took place on 1 April, 2014. It occurred on the western coast of Chile. The estimations indicate that its magnitude was 8.2. This event can be described as a megathrust earthquake since…

Introduction This study measures the Coefficient of Rolling Resistance (CRR) in a car. For this purpose, an experiment involving a car was set. A brief analysis of the CRR characteristics of a vehicle moving on a slow velocity on a flat surface is, therefore, provided. Technical Details In the course of the experiment, a Mazda CX5 car was used. The…

The stability of weather can be explained by the air fronts. The constant motion of the air masses, each having different densities and temperatures, predisposes the creation of specific weather conditions (Lutgens and Tarbuck 445). Maritime air masses are moist volumes of air, with an impressive (thousands of miles) area, which define climate in a specific region that they cover.…

On the whole, water management is one of the job skills that are of great importance to many organizations and institutions that can be both public and private. It should be noted that this area incorporates the elements of different disciplines; for example, one can speak about hydrology, geology, planning or law. Currently, the sustainability of many communities strongly depends…

An ocean gyre can be defined as a system of ocean currents, which exist in a constant rotating movement. As far as the cause of the ocean gyre is concerned, wind movements are traditionally mentioned as the key factors causing the phenomenon (Lutgens and Tarbuck 312). Though the phenomenon of the Coriolis Effect can be related to a variety of…

The concepts of climate and weather are closely related to each other; the key distinction between the two is that climate is attributed to a particular region and even a certain season, whereas weather is not (Lutgens and Tarbuck 339). Among the six elements of weather, temperature, humidity, perspiration, atmospheric pressure, clouds and wind are traditionally listed (Lutgens and Tarbuck…

Though the phenomena of ozone depletion and global warming are entirely different processes, they are often confused for each other due to the obvious connection between them. Indeed, ozone depletion can be viewed as the direct consequence of global warming; therefore, there is no wonder that the cause and the effect get mixed up. However, there are a few ways…

Though both a tornado and a hurricane are fraught with terrible consequences, both in terms of material damage and the possible injuries, when choosing between the two, I would rather face a hurricane than a tornado. There are several reasons for the choice that I have made, yet a comparative predictability of a hurricane is the feature that was defining…

Though Woodbury of the present day is the exact representation of the ordinary, its geological structure may reveal the mysteries that will shed some light onto the prehistoric life on the continent and the evolution of the species, as well as the changes that North America has been undergoing since the era when it emerged as a continent. Though Woodbury…

The concept of the hydrologic cycle is, perhaps, known by everyone over the age of eight. The fact that the three states of H2O, i.e., the solid (an ice cube), the liquid (water) and the gaseous ones (vapor) can be observed daily in the everyday environment makes the hydrologic cycle concept even more intelligible. However, a misunderstanding of the nature…

Facts in the case with respect to each of the following Engineering design The space shuttle is known to be one of the most ambitious projects of the modern age. The idea to create a space ship that would be able to fly into the outer space and return back seemed fantastic and even ridiculous. That is why its embodiment…

Introduction Dogs need to have good hygienic care. The dog owner can learn how to groom his or her dog (Miller, n.d.). There are professional groomers whose sole responsibility in life is to groom dogs at a fee. Some of the tools that one needs for grooming are the curry or curry brush, scissors and clippers, and a sticker brush.…

The phenomenon of the dew point is truly amazing in its simplicity. It can be observed on a regular basis, and it presupposes a change in the state of water, one of the most common chemical compounds on the Earth – or, to be more exact, the most common one (Lutgens and Tarbuck “Heating the Atmosphere” 378). Weirdly enough, the…

The recent four days have been quite a strange change of pace in the tendency for this summer. Instead of a relatively warm weather, which seems to have settled since June, a couple of cloudy and rather windy days passed. Despite the fact that the cold air fronts are only starting to move towards the northeast (Cool Pattern Ahead para.…

Among Galileo’s key telescopic observations, the lunar and the Jupiter ones, the observations of the sunspots, and those of the phases occurring on Saturn, Neptune and Venus, must be listed (Lutgens and Tarbuck 472). It seems that the lunar observations were of the greatest significance, since the obtained results were used as a means to evaluate the phenomena observed by…

Protecting the Habitat of Endangered Bird or Timber Logging? Walker and David argue that every person is required to protect the endangered species because; they have a duty to protect the earth, including these birds, for future generations (127). The societies do not possess the species, but they are charged with looking after their well-being. Thus, it is the society’s…

Introduction The increase in human population and economic activities has directly or indirectly affected the environment. Global environmental change refers to the transformation in the physical and biochemical features of the environment such as soil, water and biodiversity. The change may have occurred naturally, or, in many cases, influenced by man-made activities. The man-made activities include urbanization, deforestation, and waste…

Introduction The purpose of my PSAs was to answer the question on how the car emissions affect the global warming. It has been noted that in the UK, the environmental problems, such as these emissions, cause various health problems to the people. The emission by the cars is seen to affect the ecosystem a lot. Other than the health problem,…

Rhetoric analysis encompasses a methodology for providing responses to texts or speeches with the chief intention of unveiling how textual work creates meanings followed by a subsequent evaluation of the factual and implied meaning thereof. The ‘how’ aspect attempts to ponder the strategies deployed by the author or the speaker, thus, drawing the attention of the audience so that he…

Introduction This paper examines the concept of global warming with a focal point on car emissions. It is expected to aid policy makers in national governments, automobile manufacturers, fuel industry CEOs, and city planners. This paper is meant to ensure that authorities across the world, industries and members of the public jointly implement programs to reduce emissions from the private…

Introduction Water shortage is a situation where the available water cannot meet the demands of the population sufficiently. With the continued rise of the population and industrialization, there is much pressure on water sources to serve the growing needs of the people. The rise in demand for water has led to water scarcity due to high usage rates of this…

Agriculture is the key sector in America that has conquered global exports in the world. Currently, America has put in great agricultural thought in the world. This paper analyzes America’s contribution in prevention of natural calamities, decline of soil quality, promotion of production outlay and provision of sufficient food. According to Henretta & Brody, Gang system was a method introduced…