Natural Sciences Essay Examples and Topics. Page 4

2,571 samples

The City of Khor Fakkan: History and Tourism

It is situated on the east coast of the Unites Arab Emirates on the Gulf of Oman, but it is actually a remote commune, which is the part of the Emirate of Sharjah.
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1088

The Importance of Teaching Alternative Evolution Theories

The theory of evolution should be the basis of the entire course of biology at school. The general representation of the leading alternative evolution concepts should be provided before the arguments for these theories implementation [...]
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1122

The Species Concepts in Zoology

Interestingly, even these domestic dogs that are seen as belonging to the same species cannot interbreed as in the case of interbreeding Chihuahua and a Great Dane. Generally, animals belonging to the same species are [...]
  • Subjects: Zoology
  • Pages: 1
  • Words: 316

Digestive Journey of Cheeseburger

The salivary glands contribute to the breakdown of the nutrients in the mouth while the pharynx directs the eats to the esophagus.
  • Subjects: Biology
  • Pages: 1
  • Words: 401

Ancient Chinese Contributions

These four areas of innovations contributed greatly to the growth and massive transformation of China up to the current time. The use of Fireworks/gunpowder has changed the face of the world in regard to warfare.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 836

Study of the Concept of Thermoregulation

The body's response to such signals often results in sweating, one of the most visible manifestations of the thermoregulation in the human body.
  • Subjects: Biology
  • Pages: 4
  • Words: 373

New York vs. Dhaka City: Comparative Analysis

Dhaka is the capital of the country Bangladesh and a famous city in South Asia, but New York is one of the most popular cities in the world, although not the capital.
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 301

The Komodo Dragon: Species Conservation Plan

The Komodo dragon is the heaviest carnivorous lizard on the planet listed in the IUCN red list as vulnerable. The current geographical range of this species is the Komodo National Park and Flores Island.
  • Subjects: Zoology
  • Pages: 2
  • Words: 675

Stoichiometry and Process Calculations

The method used to determine the unknown compound is called Gravimetric analysis. According to Helmenstine, the gravimetric method is used to measure the compound's mass.
  • Subjects: Chemistry
  • Pages: 1
  • Words: 344

The Characteristics and Importance of Nervous System

The nervous system is rightfully considered to be one of the most complicated and significant systems of the human body, which is responsible for the quality communication and interaction between the organs.
  • Subjects: Biology
  • Pages: 6
  • Words: 1705

Massive Leak of Liquified Chlorine Gas

Small quantities of chlorine can reach the threshold of acute poisoning within a very short time, thereby leading to casualties.
  • Subjects: Chemistry
  • Pages: 19
  • Words: 2169

Genetic Disorder: “A Genetic Link to Anorexia”

The author effectively proves that the development of anorexia nervosa may occur not only due to the exposure to the social pressure of beauty standards, but also the presence of a genetic predisposition.
  • Subjects: Genetics
  • Pages: 1
  • Words: 279

Pinacol Rearrangement Experiment

The pinacol rearrangement constitutes the dehydration of pinacol and the stabilization of carbocation by the shift of methyl. The mechanism of the pinacol rearrangement commences with the protonation of one of the two OH groups.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1230

Electrochemical Methods of Analysis

The choice of method is determined by the chemical compound to be analyzed, the time available, the level of accuracy needed and the available time.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 632

Archaea and Bacteria Prokaryotes Dichotomous Keys

Most members of this phylum which are pathogenic to humans are obligate pathogens that are mostly intracellular. They are divided depending on the mode of respiration, fermentation rate, temperatures in which they thrive and shape.
  • Subjects: Biology
  • Pages: 2
  • Words: 327

Richard Preston’s Idea of Nature

In addition, he has authored a number of books such as 'First Light', 'American Steel', 'The Cobra Event', 'The Hot Zone', 'Wild Trees' and 'The Demon in the Freezer'.'The Hot Zone' was published in 2002 [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1774

Lancelets’ Adaptation and Environment

The first describable organism in the evolutionary phylogeny of lancelets is the 'Branchiostoma Lanceolatum', a molluscan slug of the Limax species.
  • Subjects: Zoology
  • Pages: 2
  • Words: 572

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

Seed Germination and Osmosis

In this experiment, "the main objective was to study the effects of salt concentration on the rate of germination in mung beans".
  • Subjects: Biology
  • Pages: 4
  • Words: 1127

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

Self-Healing Materials and Their Using

The healing process of this material is almost similar to that of the aforementioned self-healing concrete except for the fact that the polymer uses the Grubbs' catalyst during the healing process while the self-healing concrete [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1111

UNESCO Paper: The Grand Canyon National Park

The springs and seeps out of the canyon walls sustain eleven percent of the plants in the park. In some of the management activities, local citizens and volunteers have been involved.
  • Subjects: Geography
  • Pages: 6
  • Words: 1732

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: 5
  • Words: 2076

Strawberry Pest and Diseases Management

Mechanical and physical control entails the physical removal of pests and applies to the management of sap beetles. The chemical control of pests in strawberries applies to the management of insects such as flower thrips.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 943

“Global Village or Global City” by Phillip McCann

Economic competition has lead to the developed countries switching from input or process principles to performance and results principles, with occasional evaluation and recording of the results to be used in comparing their performance with [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 597

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

Activation Energy Barrier Definition

Any chemical reaction has a transitional state, which is characterized by a high level of available energy and can be described as a state of interacting molecules that corresponds to the peak of the activation [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 629

The Digestive System and Its Functions

That is why the proper functioning of the human digestive system serves as the basis for full-fledged life support during the main processes in the digestive tract. In the oral cavity, food enters the throat, [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 952

Chemical Raising Agent in Bread in Lab Experiment

Therefore, the gluten content of flour affects the physical properties of flour and the corresponding baked products. The leavening agent was baking powder, which consists of sodium bicarbonate and potassium bitartrate.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1703

Dubai as a Generic City

A unique feature of his work is the criticism of the concept of identity because he believes it chokes cities of their life and vibrancy.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1759

The Concept of Biological Species

The concept of biological species defines species as populations that can interbreed and are isolated from other species reproductively, thus making different groups that are unable to interbreed with such other species.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 599

Nomadic Pastoralism and Cultural Survival

This section looks into the case of the Northern Afghanistan nomadic pastoralists and the kind of animal they keep coupled with why they choose to remain nomadic pastoralists.
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1507

The Dead Sea Geochemical History

Globally, the most saline location is found on the water surfaces and shores of the Dead Sea. On the other hand, the pattern of fluctuation in temperature and salinity in the Arctic Ocean is complex.
  • Subjects: Geography
  • Pages: 2
  • Words: 572

Hair Care Products: Components and Effects

The heating facilitates the production of formaldehyde gas that bonds the hair with the conditioner. The entire process exposes customers to the risk of inhaling the formaldehyde gas that has negative effects on the body.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1383

Miami Geographical Aspects

The city, located at the source of Miami River, lies on a wide plain amid the Florida Everglades on the west and Biscayne Bay on the eastern side and generally has a flat terrain with [...]
  • 1
  • Subjects: Geography
  • Pages: 3
  • Words: 831

The Connection Between Totemism and Structuralism

For instance, according to the biological linkages, kinship systems are constructed from the relationship between the father and the son, the mother and the daughter, and the father and the mother.
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2215

The Natural Behavior of Wolves

Summer time is a very important period for the breeding of the wolves."During the three to four months after parturition, the pups must be adequately fed to ensure that their physical development is sufficient to [...]
  • Subjects: Zoology
  • Pages: 7
  • Words: 1937

The Huaorani of Ecuador

In such an organization, there is a wide variety of help for the day to day chores that is defined according to the ability and position of the family member.
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2478

The Eruption of Toba

Consquently, the super-eruption of Toba was unlikely to have resulted in the bottleneck. Consequently, it is evident that the super-eruption of Toba did not result in human, flora or fauna bottleneck.
  • Subjects: Geography
  • Pages: 6
  • Words: 1723

Ethnography: An in-depth analysis

The focus of this process is the collection and recording of detailed information about the activities of a selected group of people or community with regard to the topic of the study, which proves useful [...]
  • Subjects: Anthropology
  • Pages: 10
  • Words: 2709

Flammable or Combustible Liquids

Therefore, temperature is the determinant of the absorption of the vapor of the combustible liquid by the air. The flashpoint of a liquid is the least temperature, which there will be enough concentrated vapor of [...]
  • Subjects: Chemistry
  • Pages: 12
  • Words: 3232

Transpiration Process in Plants

Initially, the roots absorb water by the process of osmosis due to the variation in the concentration of the water level between the soil and roots.
  • 3.3
  • Subjects: Biology
  • Pages: 2
  • Words: 562

Ethnozoology as a Fundamental Field of Study

The Gwich'in believes that, the existence of Porcupine caribou herd is same as their existence, because they do not only depend on the animals as food, but they also respect them as the source of [...]
  • Subjects: Zoology
  • Pages: 8
  • Words: 2207

Comparison of Kula and Moka Practice

Islanders that participate in kula exchange are supposed to remain involved in this practice for the duration of their lifetime 'once in the kula, always in the kula': "The principle 'once in the Kula, always [...]
  • 1
  • Subjects: Evolution of Humans
  • Pages: 6
  • Words: 1647

Pros and Cons of Use of Pesticides

Use of DDT and other pesticides may cause harm to the ecosystem if not well used and thus it is advisable to approach this issue with more precaution.
  • 5
  • Subjects: Biology
  • Pages: 2
  • Words: 581

History of the Finger Printing

Prior to and after 1950 fingerprinting as a biometric method of identifying criminals in the field of forensic science had been settled upon as one of the most reliable methods of identifying criminals in the [...]
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2189

Cognitive Growth Stages: Piaget & Freud

The pre-operational stage: At the pre-operational stage, the child learns to exercise language and to characterize things by words and images. At this stage of development, the anus acts as the centre of attraction of [...]
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1420

Monsoons in South Asia

With the above fact, therefore, the most plausible explanation to the formation of monsoons in South Asia is that pressure imbalances between the Indian Ocean and the Asian continent are the contributing factors.
  • Subjects: Geography
  • Pages: 3
  • Words: 820

Evolution of Dogs from the Gray Wolf

However, the combined results of vocalisation, morphological behavior and molecular biology of the domesticated dog now show that the wolf is the principle ancestor of the dog.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1404

The ‘Lost Golden City’ in Egypt

This was the largest city to be uncovered in Egypt. This city was later abandoned and the capital relocated to a city known as Amarna.
  • Subjects: Archeology
  • Pages: 1
  • Words: 323

Anthropology and Humanitarianism

Implying active use of diplomacy, the actions of humanitarians serve to reduce the extent of confrontation between the participants of a specific conflict and, therefore, minimize the threat to the well-being of civilians.
  • Subjects: Anthropology
  • Pages: 9
  • Words: 2856

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

The Miller-Urey Experiment and Findings

The researchers note that their experiment was designed to mimic the primitive earth's atmosphere and not the ideal conditions required for the development of amino acids. At the experiment's conclusion, the solution in the flask [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 906

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

Anthropology: The Scope of Research

The former confidence of the world scientific community that the coming century will be the time of flourishing human science is being replaced by growing skepticism. What is the meaning of human life in the [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 697

A Light Microscope: Function and Usage

In the optical microscope device, a beam of light hits a specimen located on a slide and then travels through a system of mirrors into the objective. The use of optical circuits inside the eyepiece [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 366

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

The Origin of Olives and Their Medicinal Uses

The history of the olive tree involves numerous events, from becoming one of the leading commodities in ancient Greece Olive to being spread around the world and used in food, pharmacological, and skincare industries.
  • Subjects: Biology
  • Pages: 5
  • Words: 1524

Anthropological Reflection on Witchcraft

According to the article, the practice of spirituality is associated with poverty and ignorance in the Dogondoutchi region, while Islam corresponds to power and respect.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 614

Internet of Things in Agriculture

According to Chalimov, farmers can control such indicators as soil contamination, the proportion of harmful substances in the air, the level of water pollution, and many other characteristics that are crucial to address timely.
  • Subjects: Agriculture
  • Pages: 1
  • Words: 415

The Peruvian Ruins Mathematically-Based Visual Model

Based on the result of the investigation, the geometrical model looks to be an accurate representation of the real world. It is necessary to estimate the disparity and directionality of interaction fluxes.
  • Subjects: Archeology
  • Pages: 2
  • Words: 668

World’s Columbian Exposition of Chicago

The World's Columbian Exposition was held in 1893 in Chicago to mark the 400th anniversary since Christopher Columbus arrived in the New World.
  • Subjects: Geography
  • Pages: 2
  • Words: 549

History of Potatoes, Their Vatiety, and Popularity

The real success came to potatoes a little later - at the turn of the 18th and 19th centuries, when soldiers and horses needed to store a lot of food during the years of the [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1233

Comparing Florida With California and Illinois

The following table shows the similarities and differences of data involving the five indicators in the three states. Third, Latinos had the highest percentage of working poor while the whites had the lowest percentage in [...]
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 899

Methods of Finding and Identifying Dinosaur Fossils

The fossil record reveals that birds are the modern and feathered version of dinosaurs that evolved from past theropods in the Late Jurassic age. The reason for this is to ensure that fossil particulars weathering [...]
  • Subjects: Biology
  • Pages: 10
  • Words: 2816

Spectrophotometry Used in Biochemical Settings

The work of a spectrophotometer is based on this law to calculate the amount of light, its absorption, and concentration. Spectrophotometry is necessary to demonstrate how non-destructive methods help check the condition of the water, [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 552

Nervous System: The Main Functions

The Nervous System is the "command and control center of the body". These electrical impulses go between the brain, the skin, the organs, the glands, and the muscles.
  • Subjects: Biology
  • Pages: 2
  • Words: 577

Anthropology: Definition and Purposes

It goes without saying that all three fields in the social sciences, psychology, sociology, and anthropology, play a vital role in the understanding of human beings, and their examination is highly essential and engaging.
  • Subjects: Anthropology
  • Pages: 1
  • Words: 283

Iris Flowers Species and Their Classification

Data mining regarding the classification of iris flowers will be important in identifying the existing iris species, outlining the structural differences between the various species, identifying the possible causes for the differences, and underpinning potential [...]
  • Subjects: Biology
  • Pages: 12
  • Words: 2341

The Role of the Dietary Lipids in the Organism

This is achieved when one-third of vegetable and two-thirds of animal fats are used in the diet. The sources of dietary lipid in food are fats used in food preparation and those contained in food.
  • Subjects: Biology
  • Pages: 2
  • Words: 645

Kenya, East Africa: History and Geography

Kenya is an East-African country bordered on the northern sides by Ethiopia and South Sudan, Lake Victoria and Uganda to the west, Tanzania to the south, and the Indian Ocean and Somalia to the east.
  • Subjects: Countries Studies
  • Pages: 7
  • Words: 711

Lymphatic System Analysis

Due to the anatomy of the lymphatic system, it is sometimes thought to be part of the main circulatory system in the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 568

Migration of the Caribou Birds

With the first signs of a change of season, the herd rushes north as an indispensable condition for survival in the cyclical nature of life.
  • Subjects: Zoology
  • Pages: 1
  • Words: 304

Chlamydia Sexually Transmitted Disease

The clinical manifestations of chlamydial infection depend on the virulence of the pathogen, the duration of the stay of chlamydia in the body, the topography of the lesion, the severity of local and general reactions [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 659

Analysis of Uniform in Japanese Schools

In addition, uniforms and the rules of school life contribute to the development of a sense of harmony and collectivism in children.
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1116

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

The Kingdom Fungi: The Structure, Characteristics

It is a kingdom of living organisms that contains eukaryotic, heterotrophic organisms whose cells are enclosed by cell walls. Their cell organelles are bound by membranes hence the name eukaryotic.
  • Subjects: Biology
  • Pages: 3
  • Words: 849

Senegal’s Population and Migration Profile

As per current projections, the population of Senegal is projected to increase for the remainder of the century. Roughly 42% of the population of Senegal lives in the rural area.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1675

India: Country Overview

The geographic location is South Asia. India is regarded to be the seventh-largest country by geographical area, the second-most populous country.
  • Subjects: Countries Studies
  • Pages: 12
  • Words: 1380

Pinacol Rearrangement: Chemical Lab Experiment

Undertake qualitative analysis of the product using IR and NMR techniques, which provide spectra of functional groups and chemical shifts respectively. Carry out qualitative analysis of the product using 2,4-DNP test, which can detect carbonyl [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 1974

Determination of M2+ Ions in Mineral Water

Titrometry is one of the techniques that chemical analysts use to determine the concentration of metal ions in mineral water. A buffer is necessary to provide suitable pH for the complexing of EDTA with metal.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 1022

“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

Vision, Its Structure and Function in Humans

Light enters the eye through the cornea and passes through the iris to the retina where it is focused. Photoreceptor cells are linked to the optic nerve fibers and make the image more visual.
  • Subjects: Biology
  • Pages: 2
  • Words: 179

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

Carbon Monoxide (CO) Poisoning

Carbon monoxide poisoning is a situation where the inhaled amount exceeds the acceptable levels and cause undesired effects to one's body. This is one of the main laboratory evidence of carbon monoxide poisoning which was [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1169

Flash Chromatography Overview and Analysis

Pour the elution solvent to the silica gel then, using a gas pump, force the solvent through the silica. Without disturbing silica's top surface, the dissolved sample in the elution solvent is then gently applied [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 607

Enzymology and Catalytic Mechanism

The main substrate of the enzyme Fructose B or Fructose-1-P Aldolase is Fructose-1-Phosphate. Following graphs depict the effect of enzyme Aldolase B on the amount of Ea required for breakdown of fructose to Glyceraldehyde and [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1599

The Effect of Acetone on Wheat Seed Germination

The experiment was carried out to study the effect of Acetone on the germination of wheat seeds. As a result, the study focused on the effect of acetone on the germination of wheat seeds.
  • Subjects: Biology
  • Pages: 6
  • Words: 1704