Oxygen (O)

Essential To All Life

The Discovery of Oxygen

There were three significant people who discovered the element, oxygen. These three geniuses were Carl Wilhelm Scheele, Joseph Priestly, and Antoine Lavoisier. In 1774, Scheele and Priestly, around the same time were independently experimenting on ways to make oxygen. Both scientists used mercuric oxide in their experiments to try to find ways to produce oxygen. When produced, Priestly described the gas as, "dephlogisticated air." Scheele described it as "fire air." Also, both Priestly and Scheele realized that the air that humans breathe could not possibly be one element alone but instead many. Priestly was the first to publicize his findings, and that is why most people give him credit for the person who discovered oxygen. Although Scheele could have been first, instead he didn't publish his work until 1777 when he published, "A Chemical Treatise on Air and Fire." Soon enough, Antoine Lavoisier was involved in the discovery of oxygen as he actually gave oxygen its name. Therefore, all three of these people can be known for the discovery of oxygen.
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Uses of Oxygen

Oxygen is essential to all animal life. Without oxygen, animals would not be able to survive. Oxygen keeps animals alive, but it also is useful in many other ways.

In factories, people use oxygen gas for burning certain objects and materials such as steel.

Also, vehicles such as trains, airplanes, cars, and rocket-ships all need oxygen in order to burn their fuel off.

Today, with new technology and inventions, people can breathe in places where they have never breathed in before.

For example, when astronauts visit the moon, they have an oxygen tank, so they can breathe in outer space.

Another example is under water. People can now breathe under water and explore the seas, oceans, and bodies of water. Remember, water occupies 71% of the Earth.

Being able to breathe in places like these is essential in the development of the world because people can discover and explore places that they don't live in.

Oxygen is needed all over the world, and it's essential to all life.

Element in Nature

Did you know that oxygen makes up around 66% of the human body mass?

I know I didn't.

However, it actually is true. If you are thinking that it is not possible for oxygen to be most of your body mass, then you are wrong.

If one thinks about it, water makes up most of our body. However, oxygen accounts for 90% of water's mass. Therefore, if there is a lot of water in ones body, which there is, then there is a lot of oxygen.

Oxygen also makes up 21% of Earth's atmosphere, and scientists believe that it is the third most plentiful element in the universe, behind hydrogen and helium. Also, 47% of the mass of the Earth's crust is oxygen.

Oxygen has an atomic number of 8 and an atomic mass of 15.99.


Works Cited

Works Cited


Oxygen in Water. Chemistry Explained. Advameg, 2014. Web. 18 Dec. 2014. <http://www.chemistryexplained.com>.

Web sites, e-sources

"Carl Wilhelm Scheele." Encyclopaedia Britannica. Encyclopaedia Britannica, 2014. Web. 17 Dec. 2014. <http://www.britannica.com>.

"The Element Oxygen." Jefferson Lab. Jefferson Science Associates, 2014. Web. 17 Dec. 2014. <http://education.jlab.org>.

"Facts about Oxygen." livescience. Purch, 2014. Web. 17 Dec. 2014. <http://www.livescience.com>.

"Geological History of Oxygen." BioInteractive. Howard Hughes Medical Institute, 2014. Web. 16 Dec. 2014. <http://www.hhmi.org>.

"How Much Water Is There on Earth?" howstuffworks. InfoSpace, 2014. Web. 18 Dec. 2014. <http://www.science.howstuffworks.com>.

"Oxygen (O2) Properties, Uses, and Applications Oxygen Gas and Liquid Oxygen." Universal Industrial Gases, Inc. Universal Industrial Gases, 2009. Web. 18 Dec. 2014. <http://www.uigi.com>.

"10 Most Abundant Elements in the Universe." Jefferson Lab. Jefferson Science Associastes, 2014. Web. 17 Dec. 2014. <http://education.jlab.org>.