Free Science Essay Examples and Topics | Page 11

Importance and Evolution of Photosynthesis Science Essay

9 pages (2517 words) , Download 3 , Essay

Free

The very existence of human life fully depends upon photosynthesis, which is a significant biochemical process of energy production in plants with the help of chloroplasts, their most essential cell organelle containing chlorophyll, the green pigment essential for capturing and transforming the sunlight.

Preview sample

Human Biology: In Vitro Fertilization Science Essay

2 pages (666 words) , Download 2 , Essay

Free

In vitro fertilization has enabled many infertile couples to have healthy children. However, the in vitro fertilization process can be both a lengthy and tedious process for the female. Many times, the process involves six to nine weeks of hormone treatment in which the woman’s natural menstrual cycle is replaced with an artificial cycle.

Preview sample

sponsored ads

Hire a pro to write
a paper under your requirements!

Win a special DISCOUNT!

Put in your e-mail and click the button with your lucky finger

YOUR PRIZE:

—

Apply my DISCOUNT

Ancient Braided River System in Spain Science Essay

6 pages (1698 words) , Download 2 , Essay

Free

The ‘Urra Field Centre’, incumbent within the dryland system of the Tabernas region in the Spanish province of Almeria, is a well-known site for geological study. The field centre includes a substantial part of the Sorbas Gypsum karst. The centre lies about 20 km from the provincial capital Almeria in a semi-arid region.

Preview sample

Econometrics Science Research Paper

8 pages (1993 words) , Download 2 , Research Paper

Free

This is the EViews Correlogram. “The column to the left of AC gives k, the number of timperiodsed to calculate ρk. The AC column gives ρk. The graph of ρk is show by horizontal bars in the first colufirst columny “Autocorrelation”. Positive ρk s are drawn to the right of the zero line.

Preview sample

Climate Change and the Population Extinction Science Essay

7 pages (2453 words) , Download 3 , Essay

Free

The study has evaluated two different sources against the population simulations at two different times. The results indicated that the precipitation variability hindered the overlap of larvae and plants, increasing larval mortality. The study concluded that climate change accelerated the extinction of the butterfly species.

Preview sample

Effect of Temperature on Leaf Decay Science Lab Report

7 pages (1865 words) , Download 4 , Lab Report

Free

The decomposition of leaves is a process, which involves: Fragmentation: - where solid particles are broken down into smaller fragments by which the surface area for microbial action increases. Leaching: - where rainwater percolates into the plant material dissolves and carries away the nutrition. Mixing: - where soil material and plant material get mixed either due to the movement of organisms.

Preview sample

Media Coverage of Climate Change Science Essay

12 pages (3390 words) , Download 3 , Essay

Free

One can take heed from the words of Maya Angelou, an American author, poet, performer, and civil rights activist, who comments on the state of present-day societies’ virtue: “Curious, but we have come to a place, a time when virtue is no longer considered a virtue. The mention of virtue is ridiculed, and even the word itself has fallen out of favor” (1928).

Preview sample

The Benefits of Genetic Engineering to Poultry Production Science Essay

5 pages (1460 words) , Download 3 , Essay

Free

Animals and plants are becoming genetically engineered, altered at the molecular level to enhance the production of food. These genetic manipulations can lead to larger plants and animals, shorter gestation periods, immunity from certain diseases, and better climate adaptability. Yet, these developments are not purely benevolent.

Preview sample

Circuits with Feedback Science Assignment

6 pages (1500 words) , Download 2 , Assignment

Free

Let we consider a non-inverting amplifier along with its block diagram as shown in fig. 1. Let the block labeled ‘A, represents the amplifier and its open loop gain and block ‘β, is the feedback path with ‘β, feed back ratio and let ‘Σ, be the summing junction with ‘vin, be input voltage and ‘ve, output voltage also called error voltage.

Preview sample

Critical Review Science Essay

4 pages (1000 words) , Download 3 , Essay

The main purpose of critical review of literature is to develop a good understnding and insight into relevant previous research and the trend that have emerged.1 Critical Review is the foundation on which a research is build. There are various approaches to critical reviews: Deductive approach - In this approach we develop a theoretical and conceptual framework.

Preview sample

Attentional Spotlights Science Essay

4 pages (1000 words) , Download 2 , Essay

Studies regarding the components of attention and perception have long been considered essential in understanding the human brain; parallel studies in other scientific fields have increased its consequence by identifying it as important factors in human evolution and development.

Preview sample

Anatomy of Human Body, Liver Science Essay

8 pages (2258 words) , Download 4 , Essay

Free

In human anatomy Liver, although an accessory organ, is the largest organ in our body. It constitutes about 1/50 of the entire weight of the body. Thousands of functional units called ‘liver lobules’ are there in the liver. These liver lobules number about 50,000 to 100,000 in the human liver.

Preview sample

The Effect of Aging on Cognate Function and Development of Immune Memory Science Essay

2 pages (500 words) , Download 9 , Essay

Free

The average number of objects recalled from memory by the experimental group was 5.8. This difference of 2.8 objects, in part, can be attributed to a decrease in-memory performance, probably influenced by the external stimulus – the loud rock music played when the experimental group viewed the objects. Thus proving the hypothesis, albeit crudely.

Preview sample

Critical View on Articles about Research Methods Science Book Report/Review

14 pages (3972 words) , Download 4 , Book Report/Review

Free

The authors of “Successfully completing case study research: combining rigour, relevance and pragmatism" fail to provide their own definition of case study research, but this can hardly be considered a weakness: suggesting a comprehensive definition of case study research is not listed as one of the purposes.

Preview sample

Cautic oda Chemical tudy Science Case Study

7 pages (2533 words) , Download 2 , Case Study

Free

Cauѕtic ѕoda ѕolution iѕ a very corroѕive chemical. Ѕpecial care muѕt be taken when working with thiѕ chemical. Workerѕ ѕhould be thoroughly trained regarding the hazardѕ of cauѕtic ѕoda ѕolution before ѕtarting any work involving thiѕ chemical. Cuѕtomerѕ ѕhould carefully develops and follow all procedureѕ.

Preview sample

Arabic writing system Science Essay

5 pages (1250 words) , Download 2 , Essay

in Palestine and Syria. It consisted of 22 consonant letters. The Arabic, Hebrew, and Phoenician alphabets were based on this model. Then, around 1000 B.C., the Phoenician alphabet was itself used as a model by the Greeks, who added letters for vowels. Greek in turn became the model for Etruscan (c.

Preview sample

'Level of processing' model of memory Science Math Problem

3 pages (750 words) , Download 3 , Math Problem

Thus, for example, if you tried to memorize a list of key revision words, repeating each word to yourself (a low level of processing), this would lead to poorer recall than if you tried to associate each key word with another word or a picture or a sound.

Preview sample

Influence of Mass Media Science Science Essay

6 pages (1906 words) , Download 2 , Essay

Free

The pseudoscience and plain lack of common sense that can be seen on television, found in printed media, heard on the radio, or surfed on the Internet, how science is done, and what are the main functions of science. Television, as the most influential part of mass media, uses the initial desire of a person to get information.

Preview sample

Archaeology - Neanderthals and Modern Humans Science Essay

2 pages (500 words) , Download 3 , Essay

Free

In one of the last lines of Wright's book, it is written that "Our species is an Ice Age Hunter, only half evolved towards intelligence, clever but seldom wise" (Wright 207-208). Wright claims that human evolution is pretty much the same although technology is adapting and has always been revolving with the times.

Preview sample

Albert Einstein's Philadelphia Experiment Science Essay

3 pages (750 words) , Download 2 , Essay

Albert Einstein was the greatest Scientist ever, he made the prediction before the theories and experiments were done, he predicted many theories and conducted many experiments that were successful and are useful to us even now also. Einstein and some other scientist started the Philadelphia experiment but stopped working on it.

Preview sample

The Routines of Decision Making Science Math Problem

2 pages (500 words) , Download 2 , Math Problem

Free

Any cost or benefit that does not differ between alternatives is irrelevant and can be ignored in a decision. The reduction in direct labor and variable overhead by 10% alongside with the reduction in direct material costs by 20% must outweigh the price of $10.50 per a pair of bindings.

Preview sample

The Heart: Structure and Function Science Essay

2 pages (932 words) , Download 5 , Essay

Free

Generally, it is essential to state that this paper addresses the basic principles of the structure and function of the heart. The heart of the newborn is derived from the primitive heart; after various embryonic dilatations and changes is finally composed of four chambers and four communicating valves.

Preview sample

The Regression Analysis Science Research Paper

5 pages (1319 words) , Download 2 , Research Paper

Free

The basis of this can be proved by using the regression analysis, this study shows the relationship of the rent of land to the other factors, based on the data provided. The Analysis of the relationship between the fertilizer and the variety of corn in farmland will be analyzed by using one-way ANOVA test.

Preview sample

What is Context and Discourse Science Essay

20 pages (5395 words) , Download 3 , Essay

Free

The precise definition of context offered by anyone concerned with it will depend somewhat on the angle from which that person considers the word. Linguistics, philosophy, information technology, engineering, and education are just a few of these, and the definitions are as multiple as the disciplines themselves.

Preview sample

Conjunctiva Pathology and Treatment Science Essay

4 pages (1000 words) , Download 2 , Essay

Ocular (topical) decongestants: These medicines reduce redness by constricting small blood vessels in the eye. They are not recommended for long-term use. Using these drops for more than a few days can actually worsen symptoms. Ocular (topical) steroids: may be used as a last resort alternative to relieve the symptoms of conjunctivitis.

Preview sample

Nature verses Nurture Debate: Is Criminal Behavior Inherited or Made Science Essay

4 pages (1000 words) , Download 2 , Essay

Free

The factors can show us what part we might play in making sure our offspring are prepared to take advantage of the unlocking. Thus, it is up to us to make sure that our children are ready for the chance and planned events of placement in particular environments. These ideas have risen and been advanced by the human genome project

Preview sample

The Concepts and Myths of the Modern World Science Essay

6 pages (1547 words) , Download 2 , Essay

Free

It is closely associated with the ethical realm of norms and values. The concrete, spatial transgression of boundaries (between the house, the garden, the street, the country, and the city, as well as between inner and outer space) found above, often symbolizes a transgression of conventional gender norms. (Buchholz et al, 2002).

Preview sample

The State of Coastal Process Science Essay

16 pages (4353 words) , Download 2 , Essay

Free

This paper is concerned with coastal systems and the state of current and future research regarding coastal processes. The coastal process can be defined as anything concerning the coast. This is a complex system that encompasses the ocean, the beach, and even the sand and stones of these areas.

Preview sample

Whiteness in Historical Research Science Essay

6 pages (1500 words) , Download 3 , Essay

Free

The highly controversial issue of 'whiteness' has been subject of intensive public and scholarly debate in the U.K. and U.S. over the last decades. The recent rapid proliferation of publication dedicated to the theme is also impressive with hundreds of British, Australian, and especially American historians and scholars specialized in a variety of disciplines from law and sociology to pedagogic and cultural studies producing numerous article and books with such titles as Forever White, The Wages of Whiteness, The White Scourge, How the Irish Became White, How the British Working Class Became White, Making Whiteness, The Invention of the White Race, and Whiteness in Crisis (Bonnett, 1993, 1998

Preview sample

Interpretative Planning Strategy Science Case Study

9 pages (2250 words) , Download 2 , Case Study

Free

Interpretative planning is the process that aids an organization in communicating with its visitors. It is critical to engage visitors with collections, spaces or showings by consideration of the interpretive process. To make information and education accessible and relevant to visitors, communication must be effective and efficient.

Preview sample

Global Climat Changes Evaluation Science Book Report/Review

5 pages (1536 words) , Download 4 , Book Report/Review

Free

The world communities have gone through various challenges emerging with contemporary phenomena. The paper explores the scale of these climatic alterations on a global scale relating the phenomena to the escalating global population size, energy consumption as well as intensity of land use.

Preview sample

Conjunctiva in Contact Lens Wear Science Research Proposal

5 pages (1250 words) , Download 3 , Research Proposal

A number of previous studies have reported a compromise of the conjunctiva during contact lens wear, presumably as a result of the direct mechanical effects of lens wear; these include conjunctival staining, hyperaemia, chemosis and folding, and an apparent depletion of the number of conjunctival goblet cells (inferred from impression cytology studies).

Preview sample

Is Global Warming Causing Severe Weather Science Essay

8 pages (2394 words) , Download 3 , Essay

Free

Nowadays, global warming is an undeniable fact, which proves that our planet and its climate are in trouble. The study of global warming involves many sciences in order to examine the causes of global warming and try to find possible solutions to reduce the impact of our civilization on the planet.

Preview sample

Readability and Word Length Science Book Report/Review

14 pages (3500 words) , Download 2 , Book Report/Review

Free

Coming to the ergonomics aspect, it can be clearly said that the magazines score on the newspapers by a significant margin. It is a well-known fact that carrying a magazine is much easier than the newspapers. It is much more attractive than the newspapers. Also, the special pages used in the magazines make it much more convenient to hold

Preview sample

Technology as an Aide to Developing Cleaner Solutions in Environment Science Essay

16 pages (3500 words) , Download 2 , Essay

Free

Scientists, policymakers, and laypeople are beginning to evaluate and understand the gravity of the situation and interpret data about environmental change in a new light: progressive, incremental degradation of environmental systems is not as tolerable as it once was, and to combat that, small time measures can only achieve so much.

Preview sample

Environmental Analysis Science Essay

12 pages (3101 words) , Download 3 , Essay

Free

This is a new field of accounting such that its focus is on how to measure the amount of investment the company has to put up to measure and communicate the costs from the company’s use of raw materials and resources. The environmental costs will include the amount the company will have to pay to indemnify the victims of the company’s water waste victims.

Preview sample

Producing Mutant Clones Science Essay

4 pages (1283 words) , Download 2 , Essay

Free

The disadvantages of siRNA are that for one, it is still a relatively new technology, and there is still a lot that is unknown about it. Furthermore, unlike gene targeting, one is not yet able to quite target everything as effectively, though, experts do feel that siRNA is an innovative technology that will develop into something great in time.

Preview sample

Geographical Information Systems Science Term Paper

7 pages (1750 words) , Download 2 , Term Paper

Free

Many feminist scholars argue that GIS is compromised as a source of critical perspective precisely because it is still imbued with the masculinist ideal that to gaze upon something is to give one power over it. GIS seems to have less of a future among the more politically radical elements of geography than among the more conservative elements.

Preview sample

Internal Pressure Science Lab Report

4 pages (1000 words) , Download 2 , Lab Report

We will also compare theoretical projections to experimental results, measuring how far off from the ideal a real cylinder approximating the condition of "thinness" is. We will examine how far our experimental thin cylinder strays from the ideal linear elastic isotropic we are assuming.

Preview sample

The Pathogenic Bacteria Affect Science Essay

7 pages (2264 words) , Download 2 , Essay

Free

Careful study of both the chemical composition of food and the micro-organisms, together with the genetics involved, can enable much more efficient sterilization of foodstuff through temperature control that is the main objective of study. It has been proved that lysozyme action against thermophilic bacterial strains is available within a range of C.

Preview sample

College Math: Elimination Method for Solving a System of Equations Science Math Problem

2 pages (568 words) , Download 4 , Math Problem

Free

Although the vectors QR and RQ refer to the same segment between the points R and Q, they are two distinct vectors and can not be considered equivalent. It happens because a vector is characterized by both a numerical value and the vector’s direction. Vectors QR and RQ have exactly the same length but opposite directions and differ from each other.

Preview sample

CREB Mutation Schematic Science Lab Report

14 pages (4135 words) , Download 2 , Lab Report

Free

Extracellular signals induce ligands to bind to cell membrane receptors and these, in turn, induce second intracellular messengers to relay signals through protein kinase pathways to CREB, which is resident in the nucleus. The kinase pathways, in essence, induce phosphorylation of a single residue SER133 on CREB to activate it.

Preview sample

Natural Slope Stability Science Assignment

19 pages (5399 words) , Download 2 , Assignment

Free

Slope stability is an important factor in the design and operation of open-pit mining, quarrying and civil engineering excavation projects. Long term monitoring of slope stability is essential to ensure that the risk to personnel, equipment, buildings and other infrastructure located close to the toe or crest of a man-made slope can be properly managed.

Preview sample

The Ethical Aspects of Cloning Science Essay

4 pages (1000 words) , Download 2 , Essay

Free

The debate regarding cloning has been raging for over a decade. The argument is largely between science and religion. The very idea of cloning human embryos has initiated new laws, and even the bible has no reference to it; the Ten Commandments say “Thou shalt not kill,” but nowhere does it say, “Thou shalt not create.”

Preview sample

The Quaternary Period of History Science Essay

15 pages (4125 words) , Download 2 , Essay

Free

During the Quaternary, there have been occasions of higher temperatures occurring across the globe, temperatures comparable to and even higher than those we experience today. In truth, “the hallmark of the Quaternary is the repeated oscillation of the earth’s global climate system between glacial and interglacial states” (Walker, 2005, p. 1).

Preview sample

The Variations in Elastic and Inelastic Seismic Demand Science Research Proposal

14 pages (4372 words) , Download 5 , Research Proposal

Free

Earthquake-resistant design codes and provisions set significant limitations on structural irregularity. The present study examines and analyses the procedures used in determining seismic demands. The study also suggests scope for future investigations to determine if these limitations are sufficient to ensure intended performance objectives for structures with vertical irregularities.

Preview sample

Protein Concentration Science Lab Report

4 pages (1000 words) , Download 3 , Lab Report

With respect to their structure, biochemists often refer to four different aspects: Secondary structure, local interactions held together by hydrogen bonds between the lone pair of electrons of an oxygen atom and the hydrogen attached to a nitrogen atom.

Preview sample

Global Climate Affecting Business Climate Science Research Proposal

9 pages (2521 words) , Download 6 , Research Proposal

Free

Since records have been kept of global temperatures, the ten warmest years ever have all been since 1990. There is some debate as to the actual cause of this increase in temperature. A large part of the scientific community agrees that the accumulation of greenhouse gases in the atmosphere has contributed to this increased temperature.

Preview sample

The Implications of MRSA on Wound Healing Science Case Study

5 pages (1611 words) , Download 4 , Case Study

Free

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most serious health disorders faced by human beings in the present era. Methicillin-resistant Staphylococcus aureus (MRSA) is a specific strain of the Staphylococcus aureus bacterium that has developed antibiotic resistance to all penicillins, including methicillin.

Preview sample

What is History exercise Science Essay

6 pages (1500 words) , Download 2 , Essay

Free

The first is the chronological distance between the historian and the time period being analyzed. Reconstructing the history of a culture that existed 5,000 years ago is a very different prospect to analyzing that of 500 years ago, which is again different from that of 50 years.

Preview sample

Science Essays