Natural Sciences Essay Examples and Topics. Page 3

2,348 samples

Cooper and Silver: Physical and Chemical Properties

For the chemical and metallurgical industry, a thorough study of the properties of the materials used and the application of reference data for analysis and possible prediction of the results of a practical application is [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 1976

Campania, Italy: Geographic Analysis

The region is in the southern parts of Italy. It covers an area of 13,590 km², borders Mediterranean sea to the west, and located in the renowned Italian peninsula.
  • Subjects: Geography
  • Pages: 9
  • Words: 745

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

Transgenic Animals: Methods and Reasons For Creating

Animal models have been used throughout the history of biology to facilitate the understanding of pathogenesis mechanisms, and in the development of effective therapies. The advantage of this method is in its ability to culture [...]
  • Subjects: Genetics
  • Pages: 8
  • Words: 2234

Pesticides’ Effects on Rivers and Streams

Once the pesticides are in the water, they affect aquatic life and the entire organisms in the food chain. Water is a basic need for all living organisms, and the harmful effects of pesticides in [...]
  • Subjects: Chemistry
  • Pages: 9
  • Words: 2528

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

The Euphorbia Plant Modification and Adaptation

In the place of the leaves the plant has thorns which are used to protect the plant from its predators and help in conserving water for the plant as it does not lose water in [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 193

Physiology of Uromastyx Aegyptia

Since the soil in the harsh and arid regions is salty, this makes the vegetation to have a lot of salt elements in them.
  • Subjects: Biology
  • Pages: 4
  • Words: 1340

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

Band versus Tribal Society: Anthropological Contrast

A band society or a band is one of the simplest patterns of human society organization. The oldest member of the band is considered to be the leader and the "governor" possessing the right for [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 535

Evolution of Humans: The Human Evolutionary Theory

The earliest best-known theory of evolution was propounded by Charles Darwin, whose main thesis was that life has evolved from simple single-celled organisms to multi-cellular, complex living things through the process of natural selection and [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 558

Impacts on Kenya Since Its Independence

These were the major issues that had to be addressed in the context of the newly acquired independence of Kenya, and it is reasonable to admit that the country needed strong innovators, leaders, and fighters [...]
  • Subjects: Countries Studies
  • Pages: 5
  • Words: 1615

Browning Reactions Explained

It is the reaction of free amino groups like amines, amino acids, peptides and proteins with reducing sugars in the presence of heat and during storage.
  • Subjects: Biology
  • Pages: 2
  • Words: 522

Chemistry: Expansion Processes of a Perfect Gas

The purpose of the experiment was to examine the expansion of a perfect gas by determining the specific heat ratio through an adiabatic process and the ratio of volume using an isothermal process.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 712

Corn Plant’s Developmental Stages

After the emergence from the ground, the corn plant continues to grow and elongate over the next weeks to form a stalk.
  • 5
  • Subjects: Biology
  • Pages: 3
  • Words: 883

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

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

The Replacement Model: Main Aspects

Therefore, the replacement theory is based on the idea that the modern type of human beings could evolve only in Africa.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 702

Strada, an Ideal Country and Its Features

This paper also outlines the need for a sound governance structure that premises on the principles of justice and mercy and a respect for religious diversity, as the tenets for a reliable social framework to [...]
  • Subjects: Countries Studies
  • Pages: 10
  • Words: 2852

Anthropology: Tibetan Nomads Life

In the autumn season, the animals become healthy, and this is the time when nomads sell their animals and buy supplies for themselves, which they have to keep for another season of the year.
  • Subjects: Anthropology
  • Pages: 10
  • Words: 2790

Role of Planning Professionals

The new guidelines have to follow the six steps of urban planning which include determining the objective of the urban plan, formulating the strategy, determining the number of inputs and outputs that will be used [...]
  • Subjects: Geography
  • Pages: 15
  • Words: 3996

Ethiopia: Historical Background and Modern Issues

The political history The country has made a big stride in the political lines. The country has a unique and exclusive mix of culture compared to other African countries.
  • 5
  • Subjects: Geography
  • Pages: 3
  • Words: 975

Lubricating Oil Extraction Methods

This paper is therefore an in-depth analysis of the extraction of lubricating oils by looking at the methods of extraction, description of processes, purpose of extraction and new developments in lubricating oil extraction with emphasis [...]
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2147

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

Ethnobotanical Uses of Plants

For example, the Cedarwood plant native to Asia and the Americas is used topically in the treatment of skin diseases such as warts and psoriasis.
  • Subjects: Biology
  • Pages: 7
  • Words: 1938

Utilitarianism as a Teleological Theory

Therefore, in the interest of maximizing happiness for both parties, human beings are supposed to be vegetarians and animals are supposed to enjoy their freedom as animals.
  • Subjects: Anthropology
  • Pages: 3
  • Words: 816

High Fructose Corn Syrup: Something to Be Avoided

However, it is important to keep in mind that the lifespan of the current generation is shorter, which is, no doubt, the result of the wrong diet that consists mostly of the food created artificially, [...]
  • Subjects: Agriculture
  • Pages: 4
  • Words: 1095

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

Quartz: Corresponding Development of Science

It supports the functioning of numerous industries and contributes to the further development of technologies necessary to support the digitalization of the modern world.
  • Subjects: Geography
  • Pages: 3
  • Words: 835

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

Colombia’s History, Geography, and Culture

Colombia is located in the northwest corner of South America, bordered by Panama to the northwest, Venezuela to the east, Brazil to the south, and Ecuador and Peru to the west.
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 653

Extracellular Enzyme Production Tests

Microbes produce exoenzymes to metabolize substances in their surroundings, and these microorganisms may be used in biochemistry assays to evaluate the presence and activity of exoenzymes.
  • Subjects: Biology
  • Pages: 6
  • Words: 1178

Albinism: Causes, Symptoms, and Therapies

Hence, it is crucial to be aware of the inheritance pattern of albinism and the higher incidence of the disorder in certain ethnic groups.
  • Subjects: Genetics
  • Pages: 11
  • Words: 3044

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

Biology: Analysis of Egg Experiment

The data obtained from the above experiment supports the hypothesis that if the cell is soaked in corn syrup, a hypertonic solution, then water will move out of the cell by osmosis, and the egg [...]
  • Subjects: Biology
  • Pages: 1
  • Words: 369

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

Hominids and Stages of Human Evolution

Ardipithecus ramidus, Australopithecines, Homo habilis, Homo erectus, and Homo Neanderthal are stages of human evolution with distinct physical appearances and behavior. The molars and premolars of Homo habilis were comparatively smaller than Ardipithecus and Australopithecus.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 563

The Impact of Acetamiprid on Agriculture

It is also effective in corroding insects with biting and sucking parts of the mouth, as the active ingredient of acetamiprid is nicotine, which is dangerous for a significant portion of animals and insects.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 889

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

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 Laboratory Experiment

The first objective of the experiment is to elucidate the formation of a ketone from alcohol through the process of pinacol rearrangement in the presence of concentrated sulfuric acid, heat, and boiling chips.
  • Subjects: Chemistry
  • Pages: 11
  • Words: 3066

Kiwi Fruit: Nutrition and Biological Molecule

The kiwi fruit is botanically referred to as Actinidia deliciosa and the common name used is Chinese gooseberry. The primary function of starch is derivation of energy.
  • Subjects: Biology
  • Pages: 2
  • Words: 594

The Experiment on Substitution Reactions of Alcohols

The purpose of the experiment is to study substitution reactions of alcohols because they can react as nucleophiles or electrophiles, depending on prevailing conditions of the reaction. This experiment illustrates the reaction of 1-butanol with [...]
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2059

Effect of MgCl2 and NaCl Solutions on the Germination

Moreover, in the first and the third groups, the wheat seeds were placed in wetted paper towels whereas in the second and the fourth groups, the wheat seeds were placed on top of the wetted [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2033

Theories of Panspermia and the Origin of Life on Earth

Panspermia is one of the theories of the origins and creation of life on our planet, according to which life forms appeared on Earth from the outside of the Universe and are transferred through asteroids, [...]
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 573

Osmosis Transport Across the Cell Membranes

It is the difference in concentration of water across a semi-permeable membrane drives the process. The process is facilitated by the disparity in potential of water across the semi-permeable.
  • Subjects: Biology
  • Pages: 2
  • Words: 322

Climate Zones of the United States

In general, the majority of the territory belongs to a temperate climate, humid in the east and dry in the west, with hot summers and cold winters. The tropical climate can be seen in Florida [...]
  • Subjects: Geography
  • Pages: 1
  • Words: 325

Geography and Its Impact on History of Societies

The climate of the continent was largely uniform, and this ensured that the populations were able to migrate and adapt their crops to different parts of the continent.
  • Subjects: Anthropology
  • Pages: 9
  • Words: 2697

Russia’s Geography, History, and Governance

The demise of the Kievan Rus would also herald the rise of the Duchy of Moscow. Today the Russian Federation remains one of the largest countries in the world and heir to one of the [...]
  • Subjects: Countries Studies
  • Pages: 5
  • Words: 1506

Rome as a Significant City in the World

Rome is the capital city of Italy and the most populated city in Italy. The city is located in the middle of the Italian Peninsula along the Tiber River.
  • Subjects: Countries Studies
  • Pages: 8
  • Words: 2099

The Voyages of Christopher Columbus

Through the means of his discoveries, Christopher Columbus shattered the myth that the world was flat and that the entire planet was centered on the holy town of Jerusalem.
  • Subjects: Geography
  • Pages: 5
  • Words: 1586

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

Importance of Coral Reefs

The algae that is found in the sea also helps in reef building because they contain limestone and this is important in the integrity of the reefs.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1625

Sacrifice Among the Maya Community

This explains why the people to be sacrificed had to be painted blue- in relation to the association of the color to Chaac In the Mayan community the sun, the moon as well as the [...]
  • Subjects: Archeology
  • Pages: 9
  • Words: 2511

Biology. Cell Analogy – Nucleus + Nucleolus

The DNA is similar in every cell of the body, but depending on the specific cell type, some genes may be turned on or off - that's why a liver cell is different from a [...]
  • Subjects: Biology
  • Pages: 1
  • Words: 557

Nanofabrication. Bottom-Up vs. Top-Down Method

Some of the chemical processes used in the bottom-up approach include sol-gel process, the reaction of molecules in a flask, reverse microemulsion and flame synthesis, which have been used to make silica nanoparticles, nanozeolite, nanocatalysts [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 606

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

Green Chemistry for Consumer Products

Green chemistry can be described as the abolition of the use or production of harmful substances in the creation, making, and use of chemical commodities.
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2195

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

Young People’s Tattoo and Piercing Experiences

Commentaries of the linguistic aspects provided the information about the individuals' emotions associated with perceiving their own and tattoos and piercing, the body art of their partners, and the artists represented on bodies of the [...]
  • Subjects: Anthropology
  • Pages: 8
  • Words: 1964

Exploring Landscapes with Google Earth

In terms of the overall overlook on the map of Australia, the most distinctive feature is the desert which covers the central part of the continent, extending towards the west.
  • Subjects: Geography
  • Pages: 4
  • Words: 1176

Negotiating: Pandas in San Diego Zoo Case

It is not the possible revenues of the zoo that need to be mentioned, but rather the revenues that the counterparty will have, as well as the influence of pandas on the promotion of support [...]
  • Subjects: Zoology
  • Pages: 2
  • Words: 625

Why Evolution Is True?

A study of some of the fossil evidence using some of the modern tools shows a clear pattern of evolutionary change that make it easy to appreciate that evolution could be true.
  • Subjects: Evolution of Humans
  • Pages: 10
  • Words: 2788

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

Cell Membrane Permeability

When cells are contained in solutes with a majority of big molecules, the rate of permeability in cell membranes will automatically decrease.
  • Subjects: Biology
  • Pages: 3
  • Words: 842

The Miami Beach

A sandy landform lying along the shoreline of the ocean, the beach is filled with splendor and it inspires feelings of tranquility and bliss to the person who happens to be on it.
  • 5
  • Subjects: Geography
  • Pages: 2
  • Words: 543

Theoretical Perspective on the Giraffe’s Adaptation

Thus, the Lamarckian theory affirms that the giraffe's long neck resulted from the constant stretching in the attempt to access the higher foliage. Similarly, Darwin's theory argues that the giraffes consisted of the long necked [...]
  • Subjects: Zoology
  • Pages: 2
  • Words: 567

Body Modification: Past and Present

Types of Body Modification The term 'body modification' refers to several methods of body transformation which include piercing, tattooing, branding, cutting, binding and inserting implants to alter the appearance and shape the body.
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1419

Super Weeds’s Advantages and Disadvantages

Farmers have adopted the use of both the herbicide and the herbicide resistant crop in large percentages. One of the largest varieties is pigweed which grows at a rapid rate and leads to the emergence [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1404

Are Viruses Alive?

What happens is that the organisms that are mono-celled grow mostly because; when they are formed during the cell division they are usually small and they are supposed to grow and develop to full-grown cells.
  • Subjects: Genetics
  • Pages: 2
  • Words: 935

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

Vaquita – Endangered Species

The vaquita looks like a star curved stocky porpoise and it is the smallest of all the porpoises in the world.
  • 4
  • Subjects: Biology
  • Pages: 5
  • Words: 1367

Census Tract 78.09: Oahu Island

In addition, most of the population that amounts to about 75 % of the total count is known to dwell on the 'urban' side of the island.
  • Subjects: Geography
  • Pages: 8
  • Words: 2163

A Qualified Ability to Survive

Newton was the fourth nominee that was not considered to survive. An ability to have creativity was not observed in Mrs.Dane.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1145

On Animal Abuse and Cruelty

In these cages, the animals are confined indoors for the whole year denying them their right to roam and feel the heat of the sun.
  • 5
  • Subjects: Zoology
  • Pages: 5
  • Words: 1369

Chemical and Physical Properties of Ethane

The gas is used in the manufacture of ethane. The industry uses ethane to manufacture ethylene, which is a crucial resource in the manufacture of plastics and other chemical products.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 550

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

Nationalism: Unity and Divisions

Nationalism is a core concept in anthropology that encompasses the desire for a collective identity and the belief in the value of one's social, political, and cultural group.
  • Subjects: Anthropology
  • Pages: 10
  • Words: 2861

The Chemical Reaction of Methane and Oxygen Gases

The chemical compositions of the reacting elements or compounds dictate the nature of the reaction. The chemical reaction entails the combustion of methane gas in the presence of oxygen gas, which are the reactants.
  • Subjects: Chemistry
  • Pages: 1
  • Words: 318

Bee Extinction Causes and Preservation Solutions

This scientific research investigates various aspects of bee extinction, such as the use of chemicals and their harmful effects on bees, the impact of climate change and urbanization, and proposals for bee population preservation and [...]
  • Subjects: Agriculture
  • Pages: 3
  • Words: 841

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

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

Trinidad and Tobago in Country Studies

The economy of Trinidad is considered one of the most developed in the Caribbean: it is ranked third among the most developed economies in the Caribbean.
  • Subjects: Countries Studies
  • Pages: 8
  • Words: 1906

The Function and Structures of the Human Heart

Pulmonary circulation involves the transfer of deoxygenated blood from the heart to the lungs and then the movement of oxygenated blood from the lungs back to the heart. Coronary circulation is responsible for replenishing the [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 488

The Grand Canyon and Its Potential

Over time, the Grand Canyon became one of the symbols of the United States and the State of Arizona in particular.
  • Subjects: Geography
  • Pages: 2
  • Words: 572

The Importance of Sleeping and Dreaming

Finally, I would not take this pill since I love seeing dreams and realize that this "miracle medicine" will cause too many negative consequences.
  • Subjects: Biology
  • Pages: 1
  • Words: 158