Natural Sciences Essay Examples and Topics. Page 2

2,342 samples

Hydrolysis of Tert-Butyl Chloride: Kinetics Lab

The second objective was to confirm that the rate of the reaction is directly proportional to the concentration of the tert-Butyl Chloride if the temperature is kept constant.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 547

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

Seed Germination Experiment: Results and Discussion

The results indicated that the number of germinated seeds differed according to the concentration of solutions. 0625M CaCl2 germinated quickly on the second day and attained the mean of about 10 germinated seeds on [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 967

The Benefits of a Protection Dog

Regardless of the fact that protection dogs are animals that can hurt people, they are loving and supportive family members that provide their owners with a wide range of benefits.
  • Subjects: Zoology
  • Pages: 2
  • Words: 596

Molecular Cloning of GFP Gene

Molecular cloning is a set of methods in molecular biology that is used to obtain multiple copies of the target DNA fragment. Bacterial transformation is a process of recombinant DNA insertion into a host bacterial [...]
  • Subjects: Genetics
  • Pages: 6
  • Words: 1748

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

Greco-Roman v. Modern Sexuality

The Greco-Roman world can be defined as the geographical area around the Mediterranean Sea and the Black Sea. The differences in social ranks affected the spread of knowledge in sexuality among men and women of [...]
  • 5
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1129

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

Hurricanes Causes and Effects

Hurricanes might not really be the main storms on the earth, but their mixture of size and strength make them fatal and the most disparaging storms on earth.'The eye of the hurricane' is a round [...]
  • Subjects: Geography
  • Pages: 4
  • Words: 1410

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

P-Nitroacetanilide: Measurements and Calculations

Table 1 contains the data of direct measurements and indirect calculations for p-nitroacetanilide as a product of the EAS reaction of acetanilide. Then the theoretical mass of p-nitroacetanilide could be obtained by the following calculations: [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 694

Rate Law for Iodine-Acetone Reaction

This experiment aimed at establishing the concentration of iodine with time by quantifying the absorbance of the reacting solution at a wavelength of 410 nanometers and finally determining the initial velocity of the reaction.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 697

Micrococcus Luteus Detection Experiment

Microbial Physiology, the branch of microbiology responsible for the study of these enzymes, employs a spectrum of tests that detect the known set of enzymes unique to each species of microbe.
  • Subjects: Biology
  • Pages: 2
  • Words: 401

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

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

Maps, Atlases and their Essential Components

The title outlines the purpose of a map, and it is the first thing that a reader has to see. The north arrow helps to determine the positioning of the map and establish a link [...]
  • Subjects: Geography
  • Pages: 3
  • Words: 782

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

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

Desert: Facts & Characteristics

The largest desert on the Earth is the Sahara which is located in the northern part of Africa. One of the key characteristics in the formation of deserts is the temperature and the distribution of [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 337

Naphtha Reforming: Progress and Profits

In fact, some studies have explored the unknown elements of the catalytic process in naphtha reforming. It is also necessary to note that elements in the hydrocarbons and concentrations of other elements are responsible for [...]
  • Subjects: Chemistry
  • Pages: 15
  • Words: 4185

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

Vertical Stratification

Due to the differences in the terrestrial and aquatic environments, numerous contrasts between the two environments can be observed. Another major difference between the terrestrial and aquatic ecosystem is their level and ability to support [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 604

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

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

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

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

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

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

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

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

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

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

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

The Feeding Behavior of the Walrus

The walrus forages on the sea floor and platforms of sea ice. They must live in shallow seas, especially close to the shores.
  • Subjects: Zoology
  • Pages: 14
  • Words: 663

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

Effect of pH on Protein Solubility

The volume of the mixture was made to 200 mL in a measuring cylinder. The concentration of the protein in the supernatant was determined using a biuret reagent.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 660

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

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

Concepts of the Life of a Lion

As research studies show, the lion takes the second position in the feline family in terms of weight and size, although it is the strongest animal in the family; hence, its nickname the "king of [...]
  • Subjects: Zoology
  • Pages: 5
  • Words: 1613

The Digestive System in the Human Body

The stomach is an organ of digestion located between the esophagus and the duodenum on the left upper part of the abdominal cavity. The large intestines of the human body are located between the ileocecal [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 613

Life in the Bottom of the Ocean and Its Protection

While we all strive hard to detect and analyze the essence of life and the impact it has on our lives, we need to understand that life in itself is a big mystery, the truth [...]
  • 5
  • Subjects: Biology
  • Pages: 5
  • Words: 1529

The Profile of China. Key Facts

The areas with most of the lakes are found in the Lower-Middle Yangtze plain and the Tibet-Qinghai plateau. Most of the lakes in the Northwest part are salty while the ones in the Southeast are [...]
  • Subjects: Countries Studies
  • Pages: 5
  • Words: 1499

Museum “Sex of Animals” Exhibition

The museum has writings on the wall, and videos that show the animals in sexual acts. Same-sex sexual behavior in some of the animals led to a rethinking of same-sex sexual behavior in human beings.
  • Subjects: Zoology
  • Pages: 4
  • Words: 1086

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

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

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

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

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

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

Breakdown of the Periodic Table

The Periodic Table is the tool for arranging elements based on the correlation between the periodic function of their atomic numbers and the properties of the elements in question.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 725

Gekkonidae: Biological Characteristics

A comprehensive description of the family peculiarities started with the analysis of general characteristics of lizards and the features they obtained throughout the evolution.
  • Subjects: Biology
  • Pages: 4
  • Words: 1121

Cesar Millan as a Famous Dog Behaviorist

Millan earned the nickname "the dog boy" because of his natural ability to interact with dogs. Consequently, the dog behaviorist became a celebrity in different parts of the country.
  • Subjects: Zoology
  • Pages: 6
  • Words: 1662

Belarus: Geography, History, Economics and Culture

The Republic of Belarus is a European country and a member of the former Union of Soviet Socialist Republics. The Republic of Belarus is a country situated in Eastern Europe on the eastern part of [...]
  • Subjects: Countries Studies
  • Pages: 25
  • Words: 6983

Biosphere Evolution and Threats

The biosphere, however, overlaps between all the spheres that include the lithosphere, which is found on the surface of the earth.
  • Subjects: Geography
  • Pages: 3
  • Words: 867

The Insect Effect on Human Life

The number of insects in the world exceeds the number of all the other species taken together. This way, the reduction of the number of pollinating insects will lead to the decline of productivity of [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 571

Marxism in Development Geography

Marxist Geography is critical in nature, and it utilizes philosophy and theories of Marxism to look at the spatial relations of human Geography.
  • Subjects: Geography
  • Pages: 6
  • Words: 1695

Methods of Cultivating Crops Using Hydroponics System

According to Keith, the film of water flowing in the roots of the plant should be made as shallow as possible to facilitate efficient flow of oxygen within the rooting system of the crops as [...]
  • Subjects: Agriculture
  • Pages: 3
  • Words: 864

National Geographic Travelers Magazine analysis

The other related publication and electronic media by the same publisher include the National Geographic Kids, National Geographic Adventure and the National Expedition.
  • Subjects: Geography
  • Pages: 2
  • Words: 653

Environmental Studies – Sustainable Development

"Sustainability is refers to the indefinite use of available natural resources without ever causing depletion of the energy or material sources on which man depends; while, development is the continued improvement of living standards as [...]
  • Subjects: Agriculture
  • Pages: 5
  • Words: 1517

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

Living Resources of the Ocean

The most commendable among the benefits of marine life to human life are the fact that marine life can act as food and the fact that some oceanic organisms have medicinal value.
  • Subjects: Zoology
  • Pages: 6
  • Words: 1678

Primary Mode of Subsistence in the Zulu Culture

This paper is aimed at bringing to the fore the primary approach of the Zulu culture subsistence and further analyze the impact of its subsistence on the Beliefs and values, Kinship and social organization aspects. [...]
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2184

Survival Mechanisms Of Wild Animals

Trinkel and Kastberger argue that, the foremost threat that is facing lions in the jungle is the intrusion of more carnivores because they can overwhelm lions and force them to migrate to other destinations.
  • Subjects: Zoology
  • Pages: 10
  • Words: 2925

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

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

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 Effect of pH on Water Holding Capacity of Chicken

In the present laboratory work, the main issue is to investigate the potential relationship between WHC as a measure of moisture content and chicken pH; specifically, the question is to identify the effect of meat [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 974

Eggs: The Osmosis Process Investigation

The water was carefully drained after 40 minutes, and the egg's weight in the cup was calculated. Meanwhile, we found that corn syrup had a lower concentration of water molecules; therefore, through osmosis, water molecules [...]
  • Subjects: Chemistry
  • Pages: 1
  • Words: 421

Research of Amorphous Solids in World

The purpose of this report is to describe the history, structure, properties, and applications in real life of amorphous solids. The molecules of an amorphous solid have a short-range order of action.
  • Subjects: Chemistry
  • Pages: 9
  • Words: 2570

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

Comparing Indian Society With Europeans

Compared to the European colonies and society that wanted to conquer and defy the outer world, Indians paid more attention to their well-being and stimulation and facilitation of their irrigation systems and trade networks. As [...]
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 932

Living Things: What Do They Have in Common?

Nevertheless, cellular structure is a feature of all living things: from unicellular bacteria and algae to multicellular plants and animals. However, that cycle of growth and development is natural to all living organisms.
  • Subjects: Biology
  • Pages: 4
  • Words: 856

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

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

What Is Mitochondria and What Functions Does It Have

The ratio of the proteins found in the mitochondria is the same as that found in the eukaryotic cell. The space between the inner and outer membrane has the same amount of ions and sugars [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1095

Cell Theory, Functions, Discoveries

The basic premises of cell theory include that the basic unit of structure in all living organisms is the cell. The other premise in cell theory is that the functionality of an organism is a [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 742

Chromatography in the Determination of Amino Acids

The rate of migration relies on the strength of the chemical interactions between the analyte and the mobile phase as well as the interactions between the analyte and the stationary phase.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 837

Cells, Tissues, and Major Organs Systems

The report will cover the structure and functions of animal cells and organelles. It will also address the structure and functions of tissues and main organs of the body.
  • Subjects: Biology
  • Pages: 8
  • Words: 2269

Strontium: Physical and Chemical Properties

The rest are artificial isotopes and, are a consequence of radioactivity. The table below shows a summary of the radiological properties of strontium isotopes.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 865

OECD-GLP Guidelines: Toxicological Tests

During and after the duration of exposure, the observational studies, biochemical analyses, hematological tests, and histological studies that were conducted on the rats show that the biological responses in the rats did not differ significantly [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 2275

Potassium Polyacrylate Definition

Potassium Polyacrylate is a substance added to the soil to absorb and store water for the plants. Potassium Polyacrylate can also absorb and release fertilizers into the soil, the same way it does to water.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 574

The Brain: Structure and Functions

This paper is going to describe the major structures of the brain and the functions of each. This part of the brain is composed of cerebellum and the pons.
  • Subjects: Biology
  • Pages: 2
  • Words: 550

Why Are Glaciers Interesting?

It is very different from ice, the physical aspect of a glacier is very interesting, and the height of a glacier is another extraordinary factor that makes it very interesting.
  • Subjects: Geography
  • Pages: 2
  • Words: 531

“Shamanism, Colonialism and the Wild Man” by Michael T. Taussig

In the book "Shamanism, Colonialism and the Wild Man", Taussig explores and explains the atrocities committed by the early-20th-century rubber traders in the Putumayo Valley by studying the phenomena of terror and shamanic healing in [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1366

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

Herdt’s Contribution to the Anthropology of Gender and Sexuality

To understand his comprehensive contribution to the field of anthropology of gender and sexuality this paper analysis his research on "ritualized homosexuality" and "boy insemination" in terms of these theories implications on scientific understanding of [...]
  • Subjects: Anthropology
  • Pages: 3
  • Words: 804

Demographics: East Side Ward of Newark, New Jersey

The city of Newark, New Jersey, is the largest city in the state, although it is not the state capital. Currently, as stated above, the majority of the city's population is black, with the following [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 582

KHT Molar Solubility Experiment

Thus, the calculated molarity of NaOH is used to compute the molar solubility of KHT, which is the quantity of KHT moles that are liquefied in every liter before saturation level.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1322

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

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