Essay Database

our society would be without certain types of wires, light bulbs and other things. Tungsten is the element on the periodic table that is represented by a 'W'. Without it we would in a different world. Tungsten has an atomic number of seventy-four (74)…

By: Kimberly G. Introduction: In this lab, Mr. Greene's sixth period AP Biology class split into groups "to investigate inhibition of enzyme activity by specific chemicals called inhibitors" (1). Group three pondered this lab's inhibitor,…

who uses shampoo could tell you that their main factors in choosing a shampoo to use are smell, look, and price. People are misinformed about shampoo and how to tell the difference between a good shampoo and a bad one. The main point of shampoo is to…

for his discovery of new chemical elements. He was born in Ishpeming, Michigan and went to the University of California. He was chairman of the Atomic Energy Commission from 1961 to 1971 and then became professor at the University of California. He…

the middle Ages, to discover a substance that would change common metals to gold or silver. *442 BC: Democritus came up with the theory of atoms, and also he stated that the universe is made up of empty space and that all matter is composed of indivisib…

who was interested in minerals, discovered titanium. He recognized the presence of a new element, now known as titanium. He noticed it in menachanite, a mineral named after Menaccan in Cornwall (England). Several years later, the element was rediscovered…

can attest, mercury is a very fascinating substance. It also has an interesting history. Named after the fleet-footed Roman messenger of the gods, mercury has been used for more than 2,000 years. Mercury ore cinnabar has even been found smeared…

and pantothenic. This vitamin's main uses in every day life are growing hormones, building red blood cells, the immune system and it also participates in energy release from protein, carbohydrate and fat. INTAKE People should have five mg…

students spend $5.5 billion on alcohol, mostly beer. This averages to $466 per year! As youth continue to spend insane sums of money on alcohol, the irony of it is that most young people do not know the least about the properties of alcohol.…

its application. One determines the masses of the crucible and barium chloride hydrate for obvious data collection and calculation purposed. The heating of the sample slowly for 10 minutes is done to remove the water from the sample. A constant…