Science Essays

A) SELECTIVE (ARTIFICIAL BREEDING) Definition: Selective breeding is when the plants/animals from the existing stock that have the characteristics they want are selected and are allowed to breed. The offspring will hopefully display the characteristics which are required. The best offspring are then bred from, until all offspring display the …

Scientific Knowledge: Before doing the experiment I came to the conclusion that this experiment relates to Hooke’s Law which states that extension is proportional to the load, meaning that if you stretch something with a steadily increasing force, then the length will increase steadily too. By looking at various sources …

Aim: Our aim is to detect which factors affect the rate of the decomposition of hydrogen peroxide with a fixed mass of catalyst. A catalyst is a substance, which alters the speed, or rate of a chemical reaction but is chemically unchanged at the end of the reaction. The two …

Aim: This experiment aims to determine what effect an increase in the surrounding temperature has on the plasma membrane of a typical plant cell structure. Hypothesis: An increase in temperature will damage and denature the plasma membrane and cause the cytoplasm and other substances contained within the membrane to leak …

Impact craters are geologic structures formed when a large meteorite, asteroid or comet smashes in to a planet or a satellite. Meteorites are small rocks in space that hit the earth’s atmosphere at a high velocity. Throughout their history they have heavily bombarded all the inner bodies in our solar …

During World War II women were exposed to many different experiences that they didn’t expect, formerly thought to be men’s duties. This changed their outlook on life and also made themselves and other people realise that they could confidently take on the roles of men; that their part was not …

Plato was born in 428 B.C to Ariston, a descendent from early kings of Athens, and Perictione, a distant relative of the 6th century lawmaker Solon. He was a Greek philosopher. Throughout his life, in his Academy, he educated those who would become some of the most influential mathematicians and …

The depletion of the ozone layer is a major concern today. The ozone layer protects us from the harmful rays of the sun; therefore it is imperative that we preserve it. Since more pollutants are produced today than ever before (because of the major increase in the population), there is …

The speed of an asynchronous motor rotating field and thus its rotor speed depends on the number of pairs of poles in the stator field .the rotor speeds n are lower than the table values by the amount of the relevant slip speed ns. Motors are designed with up to …

It was not until my junior year of high school that I was able to discern what sort of career path to pursue. I had various careers in mind, but it was my first psychology class that really grasped my attention and interest. After taking the course, I utterly embraced …