Natural Sciences Essay Examples and Topics. Page 2

2,322 samples

Methyl Salicylate: Carboxylic Acids and Esters

In the experiment, salicylic acid reacts with methanol in the presence of concentrated sulfuric acids to produce methyl salicylate and water as the only products.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2741

Charles Darwin: Evolution Theory

The naturalist of the time believed that everything in the world had a key role in the economic of nature and the credit was given to an intelligent creator.
  • Subjects: Evolution of Humans
  • Pages: 5
  • Words: 1437

Eukaryotic and Prokaryotic Cells: Key Differences

Furthermore, upon the analysis of the differences between eukaryotic and prokaryotic cells, one can develop a proper understanding of the environment that is required for the correct functioning of eukaryotic and prokaryotic cells.
  • Subjects: Biology
  • Pages: 3
  • Words: 848

Evolution and Adaptation of New York City Rats

In the city, rats are considered a cultural symbol, and their number is up to five times the number of people. The common types of rats are roof rats and Norway or brown rats in [...]
  • Subjects: Zoology
  • Pages: 11
  • Words: 3050

Alkanes and Alkenes: Structure and Reactions

The general structure of an alkane is CnH2n+2, where n is the number of carbons in the molecule. The general structure of an alkene is CnH2n, where n is the number of carbons in the [...]
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1697

Evolution of Humans: The Main Theories

The process of evolution is one of the closest to the human being as people constantly invent new technologies and expand their minds.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 950

Diffusion and Osmosis Experiments

The osmolarity of various solutions was also evaluated by noting the changes in weight of potato cylinders in the solutions. The movement of carmine particles in the water was random.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1745

Experiment: Growing Tomato Plants Under Light

The first seedling was planted into a garden under a condition of strong direct sunlight of about six to eight hours daily and was far away from the light source.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 828

Oxidation States of Manganese Ion

5 ml of KMnO4 were added to the second test tube, which was the color standard for the purple permanganate ion.
  • 1
  • Subjects: Chemistry
  • Pages: 3
  • Words: 826

“On the Origin of Species” by Charles Darwin

However, an intense conflict over religious morality and the development of professionalism in science have led to the possibility of the evolvement of such revolutionary theories as the ones proposed by Darwin in On the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 834

Recombinant DNA Technology and pGLO Plasmid Use

Transformation of bacterial cells, which is one of the approaches used in genetic engineering, involves the transfer of genetic material from one bacterium to another using a plasmid vector.
  • Subjects: Genetics
  • Pages: 6
  • Words: 1666

Common Biochemical Cycles

Carbon is also an important element for the living organisms; hence the carbon cycle which is a gaseous cycle takes place to recycle the carbon and make it available for the living organisms.
  • Subjects: Biology
  • Pages: 2
  • Words: 616

Tomato Plants Growing

The results indicate that the moisture content of the tomato plants was about the same regardless of the number of fruits and the height of the plant.
  • 1
  • Subjects: Agriculture
  • Pages: 6
  • Words: 1536

Global Village Concept Explained

This type of economy is also characterized by "flexible work arrangement" Culture: Global cities are multicultural, owing to among other factors, deregulation and privatization of economies that has attracted foreign workers and traders setting in [...]
  • 1.5
  • Subjects: Geography
  • Pages: 2
  • Words: 521

The Integumentary and the Skeleton System

It is in the position of balance that the body is able to function successfully and in a normal state. It is the role of these hormones to control the body's operations.
  • Subjects: Biology
  • Pages: 4
  • Words: 1100

Primate Observation Paper

I was prepared to make observations on the behaviour of the three primates within their enclosed incarceration. The main behaviour characteristics that I observed include play-face, sniff/nuzzle, groom, new food, scent mark, and object manipulation.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1432

Plastic Impact on Humans and Planet

Plastic is any organic material that when heated and pressure applied, it can expand and after it has been cooled it retains that shape it had been subjected to.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1079

How Honey Is Made Overview

This is food for the insects and we all agree that honey is sweet; but the question is, how is honey made? Making honey is a process that the bees seem to have mastered.
  • Subjects: Zoology
  • Pages: 3
  • Words: 820

“The Egg and the Sperm” by Emily Martin Critique

She goes on to describe the way that the ova is represented as passive and waiting for the active sperm to penetrate; drawing on more recent research which shows that the sperm's force is not [...]
  • Subjects: Biology
  • Pages: 12
  • Words: 2577

Food Dye and Bleach Reaction Experiment

The rate law demonstrates how the rate correlates with the concentrations of the components of the reaction. It is possible to note that "the power of the concentration in the rate law expression is called [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1353

Negative Impacts of Animal Testing

In many instances it can be proofed that drugs have been banned from the market after extensive research on animal testing and consuming a lot of cash, because of the dire effects that they cause [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1214

The Major Characteristics of Zambia

A total of eight countries are its neighbors; including Angola to the west, Mozambique, Zimbabwe, Namibia and Botswana to the south, Malawi to the east, Tanzania to the north-east, and the Democratic republic of Congo [...]
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 904

Laboratory Techniques in DNA Manipulation

It includes the replication and production of numerous copies of the inserted DNA utilizing a vector, a DNA molecule capable of transporting foreign DNA, and a host organism.
  • Subjects: Genetics
  • Pages: 7
  • Words: 1202

Anti-Agriculture vs. Agriculture Advocacy Groups

Agriculture advocacy and anti-agriculture groups' perspectives on technology and innovation are critical distinctions between activist groups that oppose agriculture and those that support it.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 900

Wildlife Management and Extinction Prevention in Australia

This paper investigates the threats to wildlife in Australia and strategies for managing and preventing their extinction. In summary, this paper examines the threats to wildlife in Australia and outlines strategies for managing and preventing [...]
  • Subjects: Biology
  • Pages: 10
  • Words: 2902

Brazil vs. Argentina: Comparative Analysis

The territory of Argentina is mainly composed of flat plains and plateaus; there are small areas of foothills, highlands, and canyons adjacent to the Andean zone.
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 652

A Lab Report for Microbiology Class

The main advantage of this microbiological method is the different concentrations of nutrients and oxygen at different levels of the depth of the beaker: this allows bacteria with different aerotolerant needs to grow.
  • Subjects: Biology
  • Pages: 2
  • Words: 576

Forensic Procedures: Hairs and Fibres

The continued cases of robbery, murder and rape have been countered with the adoption of various forensic procedures to bring the crime perpetrators to book. The collection of hairs and fibres is usually the first [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 2067

Eruption of Mount Saint Helen Volcano

Helens volcano, looking at its history, the explosion, the immediate consequences of the eruption, and the historic impact on the climate and human life.
  • Subjects: Archeology
  • Pages: 4
  • Words: 1245

Pompeii: A Popular Archaeological Site

In light of this brief background, the discovery of Pompeii as an archaeological site was thus a rediscovery of the ancient town of Pompeii.
  • Subjects: Archeology
  • Pages: 3
  • Words: 837

Desalination in the UAE

Therefore, the UAE Security Strategy 2036 promotes the idea of the creation of desalination plants as one of the dominant technologies in the UAE.
  • 5
  • Subjects: Agriculture
  • Pages: 3
  • Words: 871

Population Growth in Qatar

The increment is attributed to an increase in the state's population and an increased number of people using the infertility clinics' services.
  • Subjects: Countries Studies
  • Pages: 14
  • Words: 2138

Flocking: The Animal Behavior Model

Flocking comes from the word "flock" described as a group of birds conducting flocking behavior in flight or when foraging. One principal advantage of flocking is the safety gained in numbers and another is increased [...]
  • Subjects: Zoology
  • Pages: 6
  • Words: 1259

Oxidation and Reduction Process

The amount of oxygen present in the atmosphere and the nature of the material it comes in contact with determine the process of oxidation.
  • Subjects: Chemistry
  • Pages: 8
  • Words: 1486

Comparing Istanbul and London

London plays a significant role as commercial capital of the UK, while Istanbul is regarded as a cultural capital of Turkey mainly for its importance in maintaining the coexistence of different traditions, and its rich [...]
  • 2.5
  • Subjects: Countries Studies
  • Pages: 7
  • Words: 1987

Italian Culture

There is no post of the vice president in Italy and in the event that the president dies, elections will have to be held.
  • Subjects: Geography
  • Pages: 4
  • Words: 1092

Natural Selection: Darwin’s Theory of Evolution

It is commonly known by the phrase, "survival of the fittest", which means that only the species that have well adapted to their environment, is well suited to survive in that habitat.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 574

Measurement of Generation Time of E. Coli

An integral part of bacterial cultures is the generation time, which determines the ability to double during each time interval: determining the minimum value of this time for an inoculated E.coli culture was the main [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1527

A Critical Review of Ethnographic Analysis

The difference between these two techniques is transparent: in the case of open observation, the group of respondents knows that the researcher is conducting an analysis and is aware of its goals, whereas covert observation [...]
  • Subjects: Anthropology
  • Pages: 7
  • Words: 1735

Functional Group Identification

This makes organic chemistry to have a very important role of describing the reaction of the carbon compounds. The aim of the experiment was to identify the functional group of the two unknown organic compounds.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1390

Bacteria Identification: Enterobacter Aerogenes

However, it is sensitive to most of the antibiotics specific to the bacterium although the sensitivity is easily lost due to its unique mechanism for resisting antibiotics particularly through the production of lactamase enzyme.
  • Subjects: Biology
  • Pages: 4
  • Words: 1096

Polymer and Fiber-Reinforced Concrete

The objective of this report is to evaluate the properties, limitations, and prospects of future applications of fiber-reinforced concretes and polymer reinforced concretes.
  • Subjects: Chemistry
  • Pages: 40
  • Words: 11030

James George Frazer’s Role in Social Anthropology

The recognition of the power of the natural laws slowly led to development of religion. As such religion, in Frazer's view is the emancipation of the intelligent man from the throes of primitive magic.
  • Subjects: Anthropology
  • Pages: 9
  • Words: 2483

Pollutants Effects on Cellular Respiration Rate

Therefore, the purpose of the experiment was to investigate the effects of pollutants on the cellular respiration rate. Moreover, the hypothesis that the presence of a pollutant harms the rate of respiration was investigated by [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1434

Evolution Process Definition

Gene flow is the biological exchange of genes from the inhabitants of a certain place to the next and also between species.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 558

Nairobi National Park in Kenya

The park has an animal orphanage where young animals left behind by their parents are kept: life at the park is survival for the fittest and if, for instance, a zebra is ambushed by a [...]
  • Subjects: Geography
  • Pages: 4
  • Words: 1088

The Future of Food

The evolution and advancement of technology have influenced the methods of how people grow and consume food. The changes that people have made to nature are very traceable and their inability to predict the outcome [...]
  • 3.8
  • Subjects: Genetics
  • Pages: 3
  • Words: 857

Physical Geography: Climatology and Geomorphology

In general, geography is the study of distribution of human beings and things over the surface of the earth, and the interrelationship between human beings and the natural world.
  • Subjects: Geography
  • Pages: 2
  • Words: 604

Kinship of Family

In the above mentioned scenario it is certain that links that are based on blood are stronger and cannot be compared to links based on the marriage because the partners in marriage are united by [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 728

16S and 18S Ribonucleic Acids: The Key Differences

Although 16S rRNA and 18S rRNA are located in the cytoplasm, the differences in the systems exist because 16S rRNA is in the prokaryotic ribosome and 18S rRNA is in the eukaryotic ribosome.
  • Subjects: Biology
  • Pages: 1
  • Words: 328

The Heat of Dissolution and Neutralization Reaction

The colorimetric method of analysis is used to determine the heat released during a chemical or physical process: the heat released in such reactions is transferred to the water by the change in temperature, of [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 1152

Autoethnography of a Coffee Shop

As I began my observation, I felt excited to see whether I would see anything new since I am a frequent customer and usually pay attention to the details.
  • Subjects: Anthropology
  • Pages: 1
  • Words: 385

Blade Runner Through Lens of Anthropology

This paper investigates the movie from the perspective of anthropology in an attempt to uncover the connections between human anthropology and Blade Runner's repercussions and reflections on replicants. Obviously, superiority results in the enslavement or [...]
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2247

Analysis of Lab: Heat of Fusion of Water

In this experiment, information was collected regarding the mass of the calorimeter and bowl, the mass of the empty calorimeter, the water, and the contents: all raw data are shown in Table 1.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 798

Formula of a Complex With the Slope-Ratio Method

In analytical chemistry, there are several techniques for determining the formula of a complex compound, but in this laboratory work, the emphasis was on the applicability of Beer's law, recognizing the fact that when a [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 988

Geography of United Kingdom

The Gneisses rocks are the oldest rocks in UK and are mostly found in North West Scotland with few traces of the rock in other places.
  • Subjects: Geography
  • Pages: 2
  • Words: 656

Bean Beetles and Oviposition Experiment

Then, the chi-squared test was performed to determine if the differences between the observed and the expected number of eggs laid on each bean were statistically significant.
  • Subjects: Zoology
  • Pages: 4
  • Words: 1131

How a Caterpillar Becomes a Butterfly

Butterflies and moths belong to the order Lepidoptera, which is the second largest in the class of Insecta. Chrysalis is the most critical stage of the lifecycle of a butterfly.
  • Subjects: Zoology
  • Pages: 3
  • Words: 856

“Dancing Skeletons: Life and Death in West Africa”

The conflict is expressed in how the author describes her culture shock when introduced to the native women's way of treating children or the procedure of female genital mutilation, for that matter.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1129

“The Facts of Evolution” by Michael Shermer

The major theme of the article is the justification of Darwin's evolution theory. The theory is based on the assumption that species are static, but the changes in species are very rapid, and, thus, the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 858

Agriculture Effects on Wild Animals

An increase in agricultural activities has subjected a majority of the wild animals to the danger of extinction. Prior to the introduction of the mongoose in Hawaii, it was easy to find a Nene goose [...]
  • 5
  • Subjects: Agriculture
  • Pages: 3
  • Words: 856

Archeology: The Bull-Headed Harp and Sound Box

In total, four scenes are depicted in the sound box, and scholars think that they are depicting a party in the spirit world, or the land of the dead. Also, the depictions of the men [...]
  • Subjects: Archeology
  • Pages: 2
  • Words: 568

The Farmers’ Market Analysis

For the farmers the benefit lies in the cost saving of the production transportation and in the ability of the wholesale with the large grocery companies.
  • 5
  • Subjects: Agriculture
  • Pages: 3
  • Words: 837

Portugal Country Profile

The president of the country, the assembly of the Republic, the government and the courts are all the sovereign bodies of the Republic.
  • 1
  • Subjects: Countries Studies
  • Pages: 15
  • Words: 4200

Silicon Dioxide Production and Application

Silicon dioxide is available in plenty, and it can easily be found in several parts of the world. This is because of the ingredients used in making it.
  • Subjects: Chemistry
  • Pages: 9
  • Words: 2472

The Deeply Rooted in the Present Book by Kenny

For example, the novelty of the author's developments may lie in the fact that she introduces the definition of Quilombo identity into the science of anthropology.
  • Subjects: Anthropology
  • Pages: 3
  • Words: 937

Basic and Applied Biology: Key Differences

The applied biology objective is to use the knowledge from basic science to solve potential problems affecting quality health, and an example is the Human Genome Project.
  • Subjects: Biology
  • Pages: 1
  • Words: 347

Practical Report: Determination of a Bacteriophage Titer

It is suggested that all the different viruses account for the quantity exceeding the number of stars in the universe. Viruses are called obligate intracellular parasites as they need the host cell in order to [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 358

Development Through the Lifespan – Middle Adulthood

Environmental influence presents the other side of influence affecting people's development in their middle adulthood. Berk explains this phenomenon in the example of menopause, which is a characteristic process in middle adulthood, and women's response [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 975

Glucose and Its Importance in Biology

Among them are galactose and fructose, with galactose being the optical isomer of glucose, while fructose is the structural isomer. On the contrary, while glucose and fructose can be found in natural sugars, especially in [...]
  • Subjects: Chemistry
  • Pages: 1
  • Words: 375

The Pros and Cons of the Lebanese Confessional System

The 1943 agreement by the representatives of the major dominant groups of that time, that is, the Maronite and the Sunni elite set the stage of the major political revolution of political Confessionalism in the [...]
  • Subjects: Countries Studies
  • Pages: 11
  • Words: 3015

“Regenesis” by George Church and Edward Regis

The ability to control living things has triggered a biotechnological revolution, which is only comparable to the changes that are witnessed in the information and communication technology.
  • Subjects: Biology
  • Pages: 5
  • Words: 1377

Lemon, Its Origin and Production

India is the largest producer of lemon producing about 16% of the total lemon and lemon products in the world. The Bush lemon tree is a natural and wild lemon.
  • Subjects: Biology
  • Pages: 4
  • Words: 1115

Religious vs Scientific Views on Genetic Engineering

With the need to increase the global economy, the field of agriculture is one among the many that have been used to improve the commercial production to take care of the global needs for food [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 826

Substitution Reactions of Alcohols

1 The SN2 substitution reaction occurs when the attacking atom or group is a strong nucleophile that hits the electrophile from the rear end thereby ousting the leaving group.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2743

Petroleum Refining: Hydrotreatment Process

This is achieved since the process changes the composition of the renewable fuels into a form that is similar to normal fossil fuels used by vehicles.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1688

Sea Otters’ Life Cycle From Birth to Death

However, after the species had almost become extinct and their protection began, the species began to recover and towards the close of the 20th century, conservation had given rise to tens of thousands of sea [...]
  • Subjects: Zoology
  • Pages: 8
  • Words: 2076

Ethnographic Design: Characteristics

According to Abalos, "ethnography is the in depth study of naturally occurring behavior within a culture or a social group; it seeks to understand the relationship between culture and behavior, with culture referring to beliefs, [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1143

Achondroplasia Genetic Disorder: Pedigree

The pedigree problem is generally featured with the necessity to provide the correct connections among the family members in a genetic history chart.
  • Subjects: Genetics
  • Pages: 3
  • Words: 819

Characteristics of Adult Development

The development entails the changes that are experienced at the various levels of growth from childhood to adulthood. Another influence is the socioeconomic status of an individual.
  • Subjects: Biology
  • Pages: 4
  • Words: 1311

South Africa: Country History Review

It is these issues that South Africa needs to deal with to increase the standard of living of all people in South Africa.
  • Subjects: Countries Studies
  • Pages: 5
  • Words: 1544

A Comparison Between China and the USA

After the bringing down of the iron curtain and the fast progress under globalization, this distinction has been reduced to that of degrees, with China all set to assume the role of leading economic power [...]
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1095

Botany and Zoology in the Classroom

What are the Purposes of the Botany and Zoology Areas in the Classroom? The role of a teacher is to prepare botany and zoology areas.
  • Subjects: Biology
  • Pages: 7
  • Words: 1631

Plant Growth and Development With Music

The study by Kroeze is focused on the ability of plants to listen to music. The article by Landhuis is dedicated to the ability of plants to hear danger that comes in the form of [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 665

Acid Effects on Starch in Industrial Applications

This variability is apparent in the morphology of starch granules regarding size and shape, the amount of amylose, the structure of amylopectin concerning the length of chains, and the position of branching.
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2011