Nature Essays

Purification – physical separation of impurities and by-products from an impure sample pure substance. *Distillation- for liquid compounds, *Recrystallization- solid compounds Recrystallization – precipitation of a solid cpd. from a saturated solution in the form of crystals through cooling or evaporation -7 steps: 1) selecting the appropriate solvent 2) dissolving …

Today I am here to inform the class about the importance of protecting yourself against the sun. What comes to mind when you think of a sunburn? I know for myself I think of the uncomfortable feeling I get when trying to put a shirt on. What also stands out …

The Effects of Industrial Pollution on Ecosystems and Human Well-Being Exploring the links between ecosystems and human well-being, this article looks at the effects of industrial pollution on water quality and their impacts. Informed by a recent UNEP report “Clearing the Waters: A focus on water quality solutions”, released on …

Trash can be observed congregating on the sides of roadways. This trash includes plastic bottles, papers, and cans. The trash seen along the sides of the road is even more pronounced when it is observed after a long winter’s thaw. Just like the sides of the road become filled with …

In Refining Reading and Writing, “Thoughts of Winter” is defined as “Winter is the season that receives most attention from us through our scientific explanation, our mythological ideas and our personal determination.” (Santiago,2008, pp.82-83). I strongly agree with this statement. In scientific clarification, winter comes every year because of northern …

Have you ever seen tall, dark puffy clouds forming on a hot humid afternoon? These clouds bring thunder and lightning. It’s pretty hard to believe that the sky can create electricity and roaring thunder. In my speech i am going to tell you first of what thunder and lightning are, …

Now that summer is over and it continues to get colder, some are plagued with questions as to how their “sporty” vehicle will handle the frigid temperatures and more importantly the ice and snow that follows. Due to todays economic distress, many are forced to rely on one vehicle year …

Adipose tissue is one of the most hydrated of all tissues in the human body. False The most abundant cation in intracellular fluid is sodium. False Electrolytes determine most of the chemical and physical reactions of the body. True Solutes, regardless of size, are able to move freely between compartments …

Certificate of Entitlement In this modern century where we are cultured in a technological-advanced environment, not many people can resist the enticement to drive a car. Ever since 1990, if not for Singapore’s Vehicle Quota System (VQS) using the Certification of Entitlement (COE) which significantly increases the cost of purchasing …

1. * What, historically, have been Apple’s competitive advantages? Apple’s mission is to make products that were cutting edge, designed beautifully, and easy to use. They have been able to keep this competitive advantage not only by relying on its own proprietary designs but also by refusing to license their …