Science Essays

Aim and Background This is an experiment to examine how the Surface Area / Volume Ratio affects the rate of diffusion and how this relates to the size and shape of living organisms. The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to …

Appearance is the first sign of identity and personality that a person shows. The majority of the people are used to judge by appearance instead of personality, but what happens when our personality and appearance are directly connected? Most of us would think that our body and our identity are …

The mass media today play a vital role in American politics and possess a vast amount of power with reference to the political process. A role is defined as characteristic and expected social behaviour and the function, position or actions taken by a required person or group. (web reference 1) …

Rickettsia are bacteria, which are obligate intracellular parasites many disease-causing, that live in vertebrates and are transmitted by bloodsucking parasitic arthropods such as fleas , lice and ticks. Rickettsias are named after their discoverer, the American pathologist Harold Taylor Ricketts, who died of typhus in Mexico after confirming the infectious …

Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker, pestle, malachite, sulfuric acid, water, 2 x filter paper, funnel, filter stand, Safety Precautions: Wear safety glasses at all times when dealing …

The nucleus is the most obvious organelle in a eukaryotic cell. Virtually all eukaryote cells have a nucleus (red blood cells lose theirs and so are enucleate for most of their life-span of 180 days). It is surrounded by the nuclear envelope, a double membrane with contains a large number …

Before the coming of the industrial revolution, the majority of jobs were in some way linked with agriculture. At this time, communication was solely by word of mouth or written text. The industrial age bought with it, demands for administration and paper work. As time went on, technology was used …

1. Analyze the structure of the personal computer industry over the last ten years. How have the dynamics of the PC industry changed? 2. Has Steve Jobs solved the “problem”? What should Steve Jobs do today? The majority of the general population may think that the PC industry arrived along …

In the story “A Good Man is Hard to Find” by Flannery O’ Conner a hard lesson is learned through the character of a grandmother to a murdered family that pleads to the killer for her life. The grandmother is described by the killer at the end of the story …

Throughout history fate vs. free will has been debated over and over. Do we really have control over our lives, or are there higher beings controlling our lives? When we look at Greek Mythology we often run into the gods of that era. Sometimes they are merely backdrops to the …