Megan

 Question: Does salt water boil faster with table salt added to it? Hypothesis: I think it will boil slower because it won't be as liqiuidy, and liquid boils faster than solid. Material: Morton Salt, a pot, a stove, and a timer. Megan Drury December 2, 2009

Question: Does salt water boil faster than tap water with nothing added to it? A verifiable fact is that adding salt to water raises its boiling point. So you can say that it boils slower. I will have the salt in the water //before// I boil it and see if that makes a difference than adding it after putting the pot on the stove. If it doesn’t, then I will know that no matter what, water containing salt will boil faster than plain tap water with no salt added. The boiling point of water is 100°C which is 212°F. The normal boiling point of water is 100°C because that is the temperature when the vapor pressure of water is 760 mmHg or 1 atm. Any liquid can boil, so that means that salt water will definitely boil. When people add salt to water, it is usually for taste purposes, but occasionally people add it to raise the boiling point. The word boils means to change from liquid to a gaseous state. It produces bubbles of gas that rise to the surface of the liquid, disturbing the liquid as they rise. Boiling water is needed for the majority of meals in restaurants and at home. Salt is a white substance that comes in tiny crystals usually used to spice up various foods. The most familiar form of salt is sodium chloride which is the main component of table salt (What I will use in my experiment). Before table salt was discovered, it would have been broken off from a block. It is now provided at almost every super market, supplied in several different packages. George Duncan Bowie and George Weddell were the main discoverers of table salt in 1888. Bibliography: "Melting Point, Freezing POint, Boiling Point." //Bodner Research Web//. Bodner Group. Web. 29 Nov. 2009.

Widom, Benjamin. "Water boils when its vapor pressure equals that of surrounding air." //CCMR- Ask a Scientist!// 30 July 2008. Web. 29 Nov. 2009.

Kissell, Joe. "Water Freezing and Boiling Myths." //Interesting Thing of the Day//. 16 Apr. 2005. Web. 29 Nov. 2009.

"Physics: Why Does Salt Boil Lower Freezing Point and Raise Boiling Point of Water?" //SEED//. Web. 29 Nov. 2009.

"Pharmacy- the mother of invention?" //Royal Pharmaceutical of Great Britain//. Web. 1 Dec. 2009