Science Essays

Aim: To investigate the factors of affecting the resistance of a wire. In this experiment I will be using a metal nichrome wire to show the resistance when the length and width is changed. Variables Variables that I am going to keep the same. Variables that I am going to …

This purpose of this experiment was for students to do the colony count methods, estimating the viable cell number of commercial active dried yeasts (ADY). This experiment allowed the students to perform the plate count technique by serial dilution and two common methods, spread plate and pour plate to determine …

In order to illustrate how internal and external factors impact the four functions of management -planning, organizing, leading, and controlling- our team has chosen General Electric (GE) Company as an example. GE has been in business since the year 1890, when the company began operating under Thomas Alva Edison (inventor …

Why will insulators affect how long a test tube of hot water stays hot? Background Information I know that there are many different ways of insulating this test tube, shiny foil can be used because it’s a poor emitter of radiation and it will reflect escaping heat by reflecting, because …

The purpose of this experiment was for students to prepare some simple organic compound and to purify the compound by recrystallisation. This experiment allowed the students to conduct the synthesis of aspirin, acquire the skills of recrystallisation using normal filtration and reinforce the technique of the melting point determination. The …

The knowledge of chemical analysis today has become important not only for scientists in their research but in fact bears influence in our daily routine as well. To recognize and classify these uses, we have to first understand, what is chemical analysis?Chemical AnalysisChemical Analysis is a body of procedures and …

Hannie Rayson’s play attempts to articulate an Australian identity and suggests that the experience of living elsewhere alters one’s perceptions of home. She explores ideas about loyalty and betrayal from the perspective of an expatriate, Meg, and examines to what degree should we criticise or accept the faults of our …

Walking down a busy street you can see the effects of science and technology at every glace you take. Its in the shoes that you are wearing, the cell phone that you are using to stay in touch with your family and friends, its in the breakfast sandwich and yogurt …

The short story entitled “Chemistry”, written by Graham Swift, is filled with rivalry between family members and the difficulties that come from trying to maintain a healthy relationship when everyday life is riddled with deception and insecurity. On a basic level the story is built around general human nature and …

As the fluorescent lights dim, a tense hush swallows the audience. Yet as the room itself darkens, the vast movie screen brightens in contrast, and the peal of a single trumpet heralds a familiar tune. “It is a period of civil war. Rebel spaceships, striking from a hidden base, have …