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Social Studies component option #1 Historical Connections

The history of glassmaking is traced back to 3500 BCE in Mesopotamia. Archaeological evidence says that first glass was made in Syria, Mesopotamia, and Ancient Egypt. Glass was produced by people who did metal working and made little beads out of it.

Glass is known as a luxury material nowadays, people use it for in cups, in doors, windows, for the framings of the cars, for dining tables, ceramic and metal work and a variety of other things.

glass is made out of pure Silica or SiO2, and has a melting point of 2000 degrees Celsius, (which would be approximately 3600 degrees Fahrenheit). Another element is Sodium Carbonate (Na2CO3), also known as potash, and lime (calcium oxide CaO) is another component. Any other additional things mixed in would be for color use only, to change the color the glass will look like.

English Language Arts component option #1 Journal

My project idea came to me a few months ago when a friend of mine told me he could do magic by making glasses sing. he then spun his wet finger around the rim of a wine glass and I heard a sound, much like a strong vibration. I was amazed by what he was doing, I later asked how that was possible and he explained that the vibration frequency makes a musical tone. When I got home I showed my family how to do this. As my PBL project I decided this was a nice thing to do, and so I tried and tried until I became pretty good at making the glasses sing.