We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Science Essay Examples

Osmosis in Onion Cell

A living plant cell will shrinks or swells depending on the solute concentration of the cell in relation to the solute concentration of the fluid surrounding the cell (1). It follows that water will move from a region of high water concentration to a region of low water concentration, therefore, if a cell is placed…

Sulphuric acid is dibasic

Demonstrating that sulphuric is dibasic: Aim: The aim of my plan is to demonstrate that sulphuric acid is dibasic. Introduction: Acid is a substance that reacts with a base to form a salt and water similarly a base is a substance that reacts with an acid to form a salt and water. “Lewis (a scientist)…

Projectile range and projectile motion

As we all know ski jumping is a worldwide sport in which athletes skate down a slope ramp, gaining speed that throws them in the air that makes them land some distance away. The distance travelled at the time when the jumper leaves the ramp, until he reaches the ground is known as the jump…

GET EVEN A BETTER ESSAY

WE WILL WRITE A CUSTOM ESSAY SAMPLE ON Science ESSAY EXAMPLES SPECIFICALLY FOR YOU

Order now
Strontium chloride hexahydrate

The following are possible factors that may contribute to acheiving a higher yeild. Firstly, it is possible that there was contamination from outside sources, such as lint or dust particles that could have fallen into the drying precipitate. Secondly are impurities accumulated through water. Non-distilled water can contain many minerals and impurities , aswell as…

Concentration of oxalic acid

The redox titration will be done between potassium permanganate and ethanedioic acid. This reaction requires acid catalyst because ethanedioic acid is too weak an acid to make the solution acidic enough to react at a reasonable rate. Sulphuric acid is in the mixture and provides the acid catalyst. The ethanedioic acid in the mixture will…

Experiement to test for anions and cations

The aim of the experiment is to test an unknown substance with a variety of experimental methods, by doing this the identity of the substance will be known. The two types of different testing methods will be anions and cations. Cations are positively charged ions; this is because the atom looses an electron during a…

Experiment to determine gravity from a spring using analogue techniques

The aim of this first experiment is to examine simple harmonic motion exhibited a mass on a spring. Using data recorded in doing this, the spring constant for each spring can be calculated along with a value for gravity. In the first part of this experiment, the relationship between the period of the oscillations of…

Hibiscus rosa-sinensis Essay

The species of hibiscus which seems to hold the greatest figure of discrepancies is Hibiscus rosa sinensis. These workss appear to hold countless fluctuations in coloring material and form in both individual and dual signifiers. due to the involvement in these workss by early hibiscus enthusiasts who hybridised Hibiscus rosa-sinensis with other compatible species. Ross…

Retort stand and clamp

In reference to the safety aspect, the radiation source is kept inside a lead block, inside a wooden box, inside another wooden block, tongues are present for the movement of the source so it never directly handled. The sources themselves are in holders, which channel the radioactive output in one direction alone. However as I…

Synthesis of 4?methylcyclohexene Essay

Abstraction 4-methylcyclohexanol was synthesized to 4-methylcyclohexene utilizing desiccation. 4-methylcyclohexanol was heated to reflux and the subsequent distillation ( 4-methylcyclohexe ) was collected. It was so purified utilizing Na chloride to divide merchandises and an anhydrous solid was so added and filtered. The resulting merchandise had a mass of 0.399 g and a percent output of…

Calculating the young modulus of constanton

Introduction Constanton is a copper-nickel alloy mainly used in the for its electrical resistance properties. It has a high resistance which is constant over a wide range of temperatures. I am going to find out the Young’s modulus of this wire and observe its behaviour. Apparatus  Constanton Wire  G-Clamp x2  Pulley Hanging weights  Ruler  Micrometer…

Chemistry report

Introduction: In this experiment, it is a redox titration method to standardize a solution of potassium manganate(VII) by an iron(II) salt (ammonium iron(II) sulphate). So, the word of redox is related to the oxidation and reduction. Oxidation numbers describe the number of electrons the atom will gain or lose during a reaction. Each atom in…

Determination of Ksp of copper(II)

Introduction: Copper(II) iodate(V) ionizes weakly in water: Cu(IO3)2 + aq Cu2+(aq) + 2IO3-(aq) For a saturated solution of copper(II) iodate(V), concentration of IO3- ions doubles that of the Cu2+ (aq) ions, and Ksp of Cu(IO3)2(s) can be calculated by determining the concentration of Cu2+(aq) ion of a saturated Cu(IO3)2(aq). The e. m. f. of a…

Compared to the original Daniell Cell

By completing and testing this hypothesis our group believes that it will factor in the aim of increasing the voltage and current of our Daniell Cell. Hypothesis 2 According to the Standard Reduction Potentials for Half-Reactions table, our group hypothesises that by changing the half cells so that their E0 values are a greater distance…

Blue-Ringed Octopus Essay

The blue-ringed octopus lives in shallow reefs and tide pools in the Pacific Ocean. normally at deepnesss runing from 0 to 20m ( Sheedy and Beasley. 2003 ) . There are four sorts of blue-ringed Octopuses ( genus Hapalochlaena ) : ( 1 ) the greater blue-ringed octopus ( Hapalochlaena lunulata ) ; ( 2…

Furagin: Forced Degradation Studies

Furagin: Forced Degradation Surveies Index Index of Figures Index of Tables Abstraction Keywords Abbreviations 1.Introduction 1.1.Forced debasement surveies 1.1.1. Overview of regulative counsel 1.1.2. Review of bing literature and different attacks 1.2.Furagin 1.2.1. Chemical and Physical Information 1.2.2. Pharmaceutical Information 1.2.3. Impurities 2.Aim of the Study 3.Method 3.1.Equipment and stuffs 3.1.1 Method AHPLC/AUPLC 3.1.2 Method…

Force of friction experiment

Limiting static friction Friction always opposes motion. It increases with the applied force. However, it cannot increase indefinitely. When a body is in contact with a rough surface, friction arises at the contact surface if the body is subjected to an applied force. When the applied force exceeds the limiting static friction , the body…

Galileo's Rolling Ball experiment

Galileo in his rolling ball experiment investigated the acceleration of a ball rolling down an inclined plane, using a similar setup I will investigate how the time taken to roll down the inclined plane varies with the vertical height change. Theory: When two similar objects are thrown vertically downwards, they are in a state of…

Making a standard solution

To find the molarity of the unknown acid, first we had to create a standard solution, the solution we created was Sodium Hydroxide (NaOH). We wanted a 0. 1 molar solution of sodium hydroxide so to get this we had to dissolve 4g of NaOH into 1000cm? of water, but we didn’t want 1000cm? we…

Physics investigation- stopping distance

Introduction In my investigation I intend to gather enough evidence and explanation to see if and how the mass of a ball will affect its stopping distance. I will carry out a series of tests starting with changing the mass of the ball then changing height which it’s dropped from. Predictions I predict that the…

Primary and secondary standard solutions

Primary standards, such as potassium hydrogen phthalate (KHP) (C8H5KO4), display unique characteristics such as high purity, maintain stability during storage within a long period of time whether in solid or liquid form, large molar mass as calculated to be 204 (RMM), low reactivity with the surrounding air, high stoichiometry and low hygroscopicity (property of absorbing…

Pulleys, forces and the principle of moments

A Push or Pull which can vary in magnitude or direction on an object is called Force. The direction of force is the direction of push or pull. If the push and pull are on opposite directions, they act simultaneously, in other words the one with the greater push gives the direction of force. The…

Rates of reaction experiment HCl

The rate of reactions is how fast something changes from its reactants to its products. For a reactions to occur, the particles must strike with enough energy. At the start of the practical only some of the reactions will have enough energy to strike with each other and create energy for the reaction to happen….

The Coriolis effect

Galileus corrected this view by explaining the path of such a projectile as a parabola, where a continual downward motion acts on the object, that being the pull of gravity. Newton furthered Galileus’ argument in showing mathematically, that the impetus was not used up, rather gravity restricted the cannon’s range by altering the shape to…

Big Bang Theory Development

The Theory of the Big Bang started from observations and scientific facts. The Big Bang theory provinces that after the “Big Bang” the existence expanded from its original pea-sized beginning to astronomical proportions. and the enlargement of the existence still continues today but at a much slower rate. In the 20th century many scientific developments…

The moral and ethical Issues of Recombinant DNA

Recombinant DNA is a modern technology involving the combination of DNA from one organism with the DNA of another. This often involves inserting human DNA into the DNA of another organism. When these genetically engineered organisms are cultured, they produce a human protein. Recombinant DNA gives scientists far greater control over genetic manipulation For example,…

Investigating a pollutants effect on cress seeds

To investigate the effect of phosphates from detergent liquid, at different concentrations, on the germination of cress seeds. Hypothesis: I predict that, at lower concentrations, the detergent liquid containing phosphates will have a small positive effect on growth. However, I believe at stronger concentrations, the detergent liquid will have a negative effect on growth, causing…

All flesh is grass

“All flesh is grass” is a quote from the book of Kings in the bible. Initially it is difficult to see how this relates to biology. However it is possible to relate the two, especially when considering the relationship between flesh and grass, or plant and animal life. It is necessary to consider exactly what…

Enzymes-Amylase and Starch

Mechanical digestion, for example the tounge, is used to break the large food particles down so that they are easier to swallow. Once the food has be taken down into the stomach, some more Mechanical digestion takes place but this is helped by Chemical Digestion. Enzymes are there to help break the molecules down. They…

Effect of Temperature on Enzyme Activity

The objective of this experiment was to determine the effect of temperature on the rate that enzymes work. The purpose was to determine whether increasing the temp made the enzymes more active, and if so, at what temperature does the activity start to decline. The experiment consisted of thirty test tubes, with 5 test tubes…

Previous
Go to page
of 18
Next

WE WILL WRITE A CUSTOM ESSAY SAMPLE IN Science

SPECIFICALLY FOR YOU FOR ONLY$16.38 $13.9/page
Order now

Our customer support team is available Monday-Friday 9am-5pm EST. If you contact us after hours, we'll get back to you in 24 hours or less.

By clicking "Send Message", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
No results found for “ image
Try Our service

Hi, I am Colleen from Paperap.

Hi there, would you like to get such a paper? How about receiving a customized one? Click to learn more https://goo.gl/CYf83b