Physical Science

The word “atom” means “indivisible” and was first coined by the ancient Greeks over two thousand years ago, as a term for the smallest particles in the Universe. Today the term “atom” refers to particles that, although incredibly small, are…
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Solar energy offers one of the truly renewable alternatives to fossil fuels to meet the world’s energy needs. But how do you get electricity from the sun? How do you convert energy from the sun into a form – electricity – you can…
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Full Lab ReportCallie Gray Introduction:In the flame test lab we undergo flame tests, a quick method of producing the characteristic colors of metallic ions. The loosely held electrons are easily excited in the flame and this energy emitted in the…
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When you hear the word “Gold,” you probably think of rings, earrings, and other jewelry. You also might think of ingots, and the price of this substance after you’ve invested in it. However, one of the areas of gold that…
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Two of the most important and widely produced industrial chemicals are sulfuric acid and phosphoric acid. Both acids are essential to the agriculture industry as fertilizer. Sulfuric acid has a vast range of specific uses in most industries such as…
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I first encountered the periodic table when I was a 7th grader. I was taught that the periodic table is a systematic arrangement of elements that exist (or discovered and recorded) on planet Earth. There are generally 3 kinds of…
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Around many discos and parties, the multicolored glow sticks have become a very familiar sight. These fun items utilize the property of chemiluminescence to produce their light. To get a glow stick to work a person has to break a…
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If you’ve never seen the movie Moon with Sam Rockwell I suggest you go rent it and watch it. It addresses issues in both politics and space programs. Sam Rockwell plays Sam Bell, a lone minor at the only Lunar…
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In 1923, scientists Johannes Bronsted and Thomas Lowry developed a system for better understanding how acids and bases interacted.  This was intended as an alternative to the Arrhenius theory and the later-developed Modified Arrhenius theory.  In order to understand Bronsted-Lowry’s…
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The Reverend William Gregor, an English pastor, discovered titanium (Ti) in 1791. Over 100 years later, Matthew A. Hunter, an American metallurgist, produced the first pure sample of this transition metal in 1910. Economic usage of titanium had to await…
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