Science Essays

An investigation to compare the reaction rates between potato and hydrogen peroxide against liver and hydrogen peroxide through loss in mass. Background information: Catalase is an enzyme that is found in all cells. This means that it is an intracellular enzyme. And enzyme is a biological catalyst. A catalyst is …

I have been asked to investigate the effects of osmosis on potato cell sap. I will test potato cylinders in different strengths of sucrose solution and record any results in a table. I will then analyse my findings and work out the isotonic point of the potato cell sap. Prediction …

In the United States in 1860, the county and people mainly depended on farming rather than industrializing like other nations such as Great Britain. Not only did they depend of farming but since there were not many cities, most people lived in small towns. It took the U.S. a lot …

Computers have made such an enormous impact on our society today. There isn’t a place where you can turn where there isn’t a computer involved. In the present time, most businesses rely on computers and it’s similar technology. This field of technology has been so advanced within the past few …

Often, people come across bad journalism. It comes in numerous forms. Sometimes it is in the form of textbooks, television, and radio broadcasts. These stories are biased and untruthful. Often, lies are added to support the journalist’s opinion. Bad journalism is heavily opinionated and gives incorrect perceptions of things. One …

It is not very often that such a small inorganic object can drastically change our lives forever. Such a device that changes the way we work, live, and play is a special one, indeed. For over fifty years, a revolution has been taking place in the United States and the …

Describes a major conflict within Apple Computer in 1985 over control of product distribution. The founder and chairman, Steve Jobs, proposed a new distribution process which would transfer many responsibilities away from distribution manager, Donna Dubinsky. Dubinsky believed, however, that this process would be practically and financially unworkable. Presents her …

Celebrities are constantly in the media for their outrageous or strange antics. People such as Robbie Williams, The Cheeky Girls and most Big Brother contestants are well known for their headline grabbing shenanigans. But some stars complain that they do not get the privacy they deserve. Nowadays it doesn’t take …

The Diathesis-Stress Model illustrates the dynamic between a diathesis and an individual’s stress and how the effects of this dynamic can influence an individual’s behavior. A diathesis is a person’s predisposition towards developing a disorder. A predisposition towards a disorder can be caused by one or a combination of biological, …

Classification The crayfish falls within the kingdom – anamalia, phylum – Arthropoda, Class – Crustacea, Order -Decapoda , and family – Cambaridae. Habitat Crayfish like to be where it’s dark and cool, and during much of the daylight they will be found by them selves, under a rock or vegetation, …