Sciences Essay Examples and Topics. Page 2

5,114 samples

Torque Supported by Real-Life Applications

This force, which enables an object to rotate, is referred to as a Torque. Torque is therefore defined as the measure of this force F, which enables the object to rotate.
  • Subjects: Physics
  • Pages: 4
  • Words: 1151

Patrilineal and Matrilineal Descent Groups

For example, in a patrilineal descent, the descent group is composed of both the females and males sired by a father belonging to the patriarchal affiliation.
  • 3
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1713

Conflict Between Aristotle and Copernicus

Copernicus continued his research and developed a new model of the universe which contradicted Aristotle's paradigm since the Earth was not the centre, but one of the planets moving around the Sun.
  • 5
  • Subjects: Astronomy
  • Pages: 4
  • Words: 1081

Accessibility to Safe Drinking Water

The first is to dig wells in the rural and arid areas to aid the people to have access to water. The other alternative is to treat water and use it in the home.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 551

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

The Design and Implementation of DC-DC Boost Converter

The project begins with a research into solar energy particularly the photovoltaic cell, its historical development, and the behavior and modular design and construction of the PV cell.it goes further to detail on alternative devices [...]
  • Subjects: Physics
  • Pages: 28
  • Words: 7637

Optics: The Experiment of Snell’s Law

The degree of bending is proportional to the refractive index of the medium. In essence, with an incident ray traversing two media with different refractive indices, the incident ray, the normal to the interface separating [...]
  • Subjects: Physics
  • Pages: 3
  • Words: 910

Electrical Circuit Theory: Rectification Process

As such, a number of components like capacitors and inductors are incorporated in the final sections of the rectification circuit so as to result in a smoother output waveform. This is known as the rectification [...]
  • Subjects: Physics
  • Pages: 6
  • Words: 1729

Buffer Solution and Determination Changes in pH

It contains either a weak acid and its conjugate base, or a weak base and its conjugate acid. The equation links the measured pH of a solution, hydrogen ions concentration, and the dissociation constant of [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 983

Production of Acetone from isopropyl alcohol

Following the procedure in the production of acetone, the several materials emerge during and after the production. The production of acetone In the feed drum: A feed is a tank like object used in the [...]
  • 3
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2271

Quasi-Experiments and True Experiments

In most cases, the nature of variables and the need of the investigation play a vital role in influencing the criteria for exploration. The analysis focuses on exploring the variation between quasi and true experiments [...]
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 615

Big Bang Theory: Assumptions & Scientific Evidence

The Big Bang Theory is one of the theories that explain the origin, development, and the nature of the universe. This assumption is very important in the explanation of the origin and development of the [...]
  • 5
  • Subjects: Astronomy
  • Pages: 7
  • Words: 2022

Geography, its Evolution and Future

Geography is the study of the earth and the natural features that characterize it. The revolution was related in some way, to the methods in which the researchers studied the earth and the processes occurring [...]
  • Subjects: Geography
  • Pages: 8
  • Words: 1653

Dependent, Independent, and Extraneous Variables

The last type of variable is an extraneous variable, which stands for the type of variable that is not independent and is not explicitly controlled by the researcher, leading to some unexpected outcomes and effects [...]
  • Subjects: Statistics
  • Pages: 1
  • Words: 275

The Gregorian Calendar and the Egyptian Calendar

The creation and introduction of the Gregorian calendar by the roman pope made the lives of the community use it to have an upper hand over others using other forms of the calendar.
  • Subjects: Astronomy
  • Pages: 3
  • Words: 934

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

Sliding Friction: Static and Kinetic Friction

Friction is mainly depended on the nature of the surfaces and not the area of contact between the surfaces. The objectives of this experiment is to verify the laws of friction, the different types of [...]
  • Subjects: Physics
  • Pages: 4
  • Words: 1482

Biology: Photosynthesis and Respiration

In this process molecules of carbon dioxide gas and water are combined in the presence of the solar energy and chemical energy is formed.
  • Subjects: Biology
  • Pages: 2
  • Words: 849

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

The Rate and Order of a Chemical Reaction

The method of initial rates was employed in the determination of the order and rate law for the reaction. The rate of the reaction and the rate law expression for the reaction were then established [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 923

How to Present Research Findings

Proper presentation of research findings is essential in determining the success of the research. All the methods are tailored at taking care of the interests of the audience.
  • 5
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 572

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

The Maps’ Importance in Human History

In fact Akerman praises the American road map of the twentieth century to be one of the greatest inventions at the benefit of the public.
  • Subjects: Geography
  • Pages: 2
  • Words: 566

Factors Governing Population Distribution in Canada

The area covered by Canada is the largest country in the world after Russia and has the largest coastline. The Shield and the Rocky Mountains in the North have discouraged settlement in the area because [...]
  • Subjects: Countries Studies
  • Pages: 12
  • Words: 3365

Common Sense and Educated Common Sense

Thus, the difference is that common sense is based on past experiences and therefore does not involve thinking, while educated common sense processes observation information to define a fact.
  • Subjects: Scientific Method
  • Pages: 1
  • Words: 313

Vacuum Cleaner Design Study

This sweeper used the technology of having a water chamber inside the machine to clean the air and collect the dust particles.
  • Subjects: Statistics
  • Pages: 5
  • Words: 1515

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

Statistics, Its Importance and Application

The importance of statistics is to determine the type of data required, how it is collected, and the way it is analyzed to get factual answers.
  • Subjects: Statistics
  • Pages: 2
  • Words: 569

Urban Agriculture Effects on Economy

The preparation of the journals involved conducting interviews with the urban farmers and surveys on the certainty of the farming practices.
  • Subjects: Agriculture
  • Pages: 10
  • Words: 2621

Spatial Modeling: Types, Pros and Cons

Its primary objective is to facilitate the evaluation and simulation of spatial phenomena occurring in the actual world and allow for planning and problem-solving approaches.
  • Subjects: Math
  • Pages: 3
  • Words: 950

Albert Einstein’s Contributions to Science

Some of his well-known contributions in science include the theory of relativity and the Quantum theory. In the year 1905, Einstein worked on the Theory of Relativity.
  • Subjects: Physics
  • Pages: 2
  • Words: 570

Thin Layer Chromatography

The TLC sheet was placed in a universal bottle containing solvent A with the line of origin nearest to the bottom but above the solvent. The positions of the solvent and each pigment molecule were [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 1218

Nanobiotechnology, Its Advantages and Disadvantages

While the world believes that nanobiotechnology is likely to shape future technology, it is important to consider both sides of the technology and have an analysis of its pros and cons.
  • 5
  • Subjects: Biology
  • Pages: 3
  • Words: 886

Alternate processing methods for xrays(radiography)

However, the processing method is very expensive, and the radiation dose is very high compared to standard processing methods. To add to this, quality of the film produced under the daylight processing is high.
  • 5
  • Subjects: Physics
  • Pages: 2
  • Words: 608

Use of Pesticides in Agriculture

The general narrative on pesticide use in agriculture is the assertion that it saves labor and ensures higher crop yields. These adversities show just how greater danger than the usefulness of pesticide use is in [...]
  • Subjects: Agriculture
  • Pages: 1
  • Words: 346

Pets and people

In this case, the dogs can have the aspect of love in the same manner as human beings. However, the inner calm and satisfaction that are depicted by dogs are similar to that of humans.
  • 5
  • Subjects: Biology
  • Pages: 3
  • Words: 808

Qualitative Research Critique

The PICOT question of this study is: "In registered nurses, can the introduction of an advanced workload plan, compared to no efforts from the management, reduce the issue of understaffing, within a six- month period? [...]
  • Subjects: Scientific Method
  • Pages: 4
  • Words: 1232

Biopsychosocial Model and Case Formulation

Case formulation is a hypothesis about what predispositional, precipitating, and perpetuating factors and mechanisms influence and impact a person's psychological, interpersonal, and behavioral problems/struggles. Case formulation in this sense is a tool that helps to [...]
  • Subjects: Scientific Method
  • Pages: 8
  • Words: 1127

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

Time Series and Causal Models in Forecasting

The casual technique is a quantitative method that relies on the interpretation of the behavior of the casual relationship between two variables and the independent variable.
  • Subjects: Statistics
  • Pages: 2
  • Words: 618

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

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

Conservation Of Energy

The amount of kinetic energy in a body is affected by environmental factors and the state of surrounding bodies while potential energy is independent of the surroundings.
  • Subjects: Physics
  • Pages: 2
  • Words: 555

Volcanoes and Their Characteristics

Volcanoes always presented a broad area for researches in terms of their close relationship between their forms, structures, the styles of their eruption, and the mineral composition of their magma and lava.
  • 1
  • Subjects: Geology
  • Pages: 3
  • Words: 836

Map Making History and Development

Globalization has made the world interconnected at a level that was unprecedented in the past resulting in people thinking of the world and the various countries and societies within it in a way that is [...]
  • Subjects: Geography
  • Pages: 10
  • Words: 2744

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

Smart Farming and Sustainable Agriculture

Smart farming allows for a wide range of options, from robotization and satellite imagery to the Internet of Things and the blockchain technology that increases the efficiency of crop cultivation by optimizing the use of [...]
  • Subjects: Agriculture
  • Pages: 8
  • Words: 2308

The Wonders of the Universe

In his book Hawking while reviewing the writings of the Newton as well as Einstein, he discusses the role of God in the creation of the universe.
  • Subjects: Physics
  • Pages: 14
  • Words: 3811

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

Public Awareness of Earthquake

This will mean that the basement that is involved in thickening and shortening is mechanically required to produce the shape of zagros belt.
  • Subjects: Geology
  • Pages: 13
  • Words: 3915

Importance of Narrative Approach

The main subjects included the history of the society, religious and cultural beliefs of the society and the unexpected behaviors of the people.
  • Subjects: Scientific Method
  • Pages: 10
  • Words: 2802

Methamphetamine (Meth)

In conclusion, meth is one of the most addictive drugs, with serious physiological and psychological complications hence, the need for individuals to watch their consumption habits.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 894

Objectivist and Subjectivist View of Research

The relevancy of a research project is measured in terms of the new knowledge the research establishes and the applicability of the same knowledge in solving human problems.
  • Subjects: Scientific Method
  • Pages: 10
  • Words: 2945

Steps in Data Collection

The first step is to know and identify the need for data collection. Approaches and methods to be used depend on organization's resources, the type of issues, and the purpose of data collection.
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 647

The Physics of Gun Recoil. Scientific Background

Recoil is the backward momentum of a gun after a bullet has been discharged. On most occasions, this movement of a gun causes discomfort to the shooter since reduces the accuracy of the target.
  • Subjects: Physics
  • 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

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

Study of the Research Paradigm

The understanding of various approaches to identification of reality, objectivity and subjectivity of knowledge, systems of research, and methods of data collection and analysis is highly significant for modern scholars.
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 615

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

Water Cycle Process

On the reaching the atmosphere water molecules bond together again and come back to the earth surface through the process of precipitation.
  • Subjects: Physics
  • Pages: 2
  • Words: 538

The Life Cycle of a Star

The brightness of a star is directly related to its mass since the greater the mass, the greater the amount of hydrogen available for use in the process of nuclear fusion.
  • Subjects: Astronomy
  • Pages: 5
  • Words: 1362

A Mesh and Nodal Analysis Lab Report

The variables in the circuit are chosen to be the node voltages in nodal analysis. Mesh or loop analysis, as contrasted to nodal analysis, deploys Kirchhoff's voltage law to evaluate currents in the circuit.
  • Subjects: Physics
  • Pages: 2
  • Words: 662

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

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 [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1529

Steel and Young’s Modulus Experiment

The stress at the end of the experiment gave the breaking strength and was 504. The stress-strain curve was re-plotted in the range of 0 to 1% strain to calculate Young's modulus and 0.
  • Subjects: Physics
  • Pages: 2
  • Words: 656

Neolithic Revolution

Neolithic revolution refers to an agricultural revolution that occurred between 8,000 and 5,000 BC, during which period the human way of life was transformed from historically practices that predominantly involved hunting and gathering to a [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 604

Percent Composition of Calcium in Salt: Gravimetric Analysis

The precipitative gravimetric analysis allows the use of a net ionic equation for the measurement of the mass of solid calcium oxalate, determination of percent composition of calcium in the salt using the empirical formula, [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1126

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

Physics Lab Report: Centripetal Force

In this laboratory work, the dependence of the centripetal force on the radius, the mass of the sample, and the angular velocity at which the sample rotates around the vertical axis are studied.
  • Subjects: Physics
  • Pages: 2
  • Words: 630

Ubiquity of Bacteria: Laboratory Activity

You will examine some surfaces and note that while you cannot see individual bacteria because they are so tiny and clear, it is possible to see a colony, or group, of bacteria. Then, the bacteria [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1496

Soil Erosion, Its Factors and Preventive Measures

Soil is the sediment, surface layer of land produced as a result of transformations in rock materials that occurred under the influence of both living and dead organisms including plants, animals, and bacteria; solar heat, [...]
  • Subjects: Agriculture
  • Pages: 3
  • Words: 886

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

The Phone Case Drop: Force Analysis

The acceleration of a system is directly proportional to and in the same direction as the net external force acting on the system, and inversely proportional to its mass.
  • Subjects: Physics
  • Pages: 1
  • Words: 412

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

Modern Algeria

It borders the Mediterranean Sea to the north, Tunisia, and Libya to the east, Niger, Mali, and Mauritania to the south, and Morocco to the west.
  • Subjects: Countries Studies
  • Pages: 20
  • Words: 5466

History of the Telescope

This was not to be end of the journey in terms of improvement of the telescope. This kind of telescope solved the problem of chromatic aberration that was witnessed in the Keplerian telescopes.
  • Subjects: Astronomy
  • Pages: 7
  • Words: 1858

Difference between qualitative and quantitative methods

The instruments used to obtain and categorize responses to research questions are more rigid in quantitative research compared to those used in qualitative research which is more flexible.
  • 1
  • Subjects: Scientific Method
  • Pages: 4
  • Words: 1083

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

The Botanical Garden Collection

The characteristic of the principles of organization of the New York Botanical Garden should be started from the statement of its mission which is expressed as "being an advocate for the plant kingdom".
  • Subjects: Agriculture
  • Pages: 2
  • Words: 575

Erosion and Deposition

Types and effects of erosion Water erosion is one of the major types of erosion. In conclusion, it is evident that deposition and erosion are major contributors towards the structure of landscapes.
  • Subjects: Geology
  • Pages: 2
  • Words: 535

Energy Conservation: The Lab Experiment

The motion of a pendulum is a good demonstration of mechanical energy conservation. However, gravity is a conservative force, which is why it does not cause any change to the total mechanical energy of the [...]
  • Subjects: Physics
  • Pages: 4
  • Words: 1116

The Solubility of Potassium Nitrate

9g of potassium nitrate was added to the water, and the test tube was shaken until all the salt was submerged in the water.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1738

‘Formulating a Research Problem’ by Ranjit Kumar

The seven steps described in this chapter of the 'Research Methodology: A Step-by-Step Guide for Beginners' are: "identifying the problem of the research; acknowledging the importance of formulating a research problem; mentioning the sources of [...]
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 593

Solar and Lunar Eclipses – Historical Perceptions

With the ability to predict the precise time and place of eclipses, the scientists obtained the opportunity to explore the eclipses more thoroughly and became capable of finding the connections with and the effects of [...]
  • 3.7
  • Subjects: Astronomy
  • Pages: 6
  • Words: 1675

Human development index

It is important to note that the origin and development of the human development index is closely linked to the United Nations, to be more precise, to the United Nations Development Program's annual development reports.
  • Subjects: Anthropology
  • Pages: 3
  • Words: 795

Living in Switzerland: The Main Benefits

Switzerland is on the list of leaders not only in the country's economic state but also regarding quality of life. The country has a 13-month system: the salary is paid in double volume in the [...]
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 378

A Null and an Alternate Hypothesis

The reason why the null hypothesis is structured this way is that the hypothesis is normally formulated for rejection. Therefore, for every null hypothesis, there should be an alternative hypothesis that is framed in such [...]
  • Subjects: Scientific Method
  • Pages: 2
  • Words: 570

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 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

Bhutan’s History, Geography, Politics, and Economy

In the 1616 CE period, the arrival of the Tibetan Lama fostered the introduction of the dual system of secular and religious government that is still practiced up to date in Bhutan.
  • Subjects: Countries Studies
  • Pages: 17
  • Words: 3023

Non-Experimental Research Designs

The quick, grab-and-go nature of non-experimental quantitative designs cannot deliver the same in-depth results as experimental designs. Non-experimental quantitative designs cannot generate the same in-depth results as experimental design due to their grab-and-go aspect.
  • Subjects: Scientific Method
  • Pages: 1
  • Words: 335

The Centripetal Force Experiment

As force acts on an object in motion, its acceleration and direction of force act towards the center of the circular path.
  • Subjects: Physics
  • Pages: 2
  • Words: 866

Importance of the Brain in Human Body

The brain also provides a long-term storage memory where a reader may be in a position to recall the events that have taken place in the comprehension and the right order.
  • Subjects: Biology
  • Pages: 3
  • Words: 946

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

Bangladesh Garment Industry

The reason for these situations is that the government and the industry focuses too much on the financial gain and the end result, without taking proper care of the people that make all the difference [...]
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1117

The Evolution of Electricity

In one of her works Diana Bocce observes, "The kite experiment helped Franklin establish a relationship between lightening and electricity, which led to the invention of the lightning rod" This is considered one of the [...]
  • Subjects: Physics
  • Pages: 10
  • Words: 2790

Sampling, Reliability and Validity

Presentation of the population will be determined in the sample as the study will not include all the students from the research schools.
  • Subjects: Scientific Method
  • Pages: 3
  • Words: 928