Difference between revisions of "AY Honors/Soap Craft/Answer Key"
| Line 5: | Line 5: | ||
==2. What is the difference between soap and detergent? == | ==2. What is the difference between soap and detergent? == | ||
| − | + | ||
| + | A soap is a natural fatty substance (called fatty acids) | ||
| + | which has been reacted with lye (sodium hydroxide). | ||
| + | A detergent is any type of cleaner which does | ||
| + | not contain a soap as its main ingredient. Detergents | ||
| + | typically contain synthetic surfactants which | ||
| + | perform in many ways better than soap. | ||
==3. What causes the cleansing action of soap? == | ==3. What causes the cleansing action of soap? == | ||
Revision as of 12:38, 18 October 2007
1. What ingredients are used to make soap?
Ingredients used to make soap are oil, alkali, glycerin
2. What is the difference between soap and detergent?
A soap is a natural fatty substance (called fatty acids) which has been reacted with lye (sodium hydroxide). A detergent is any type of cleaner which does not contain a soap as its main ingredient. Detergents typically contain synthetic surfactants which perform in many ways better than soap.
3. What causes the cleansing action of soap?
Soap is an excellent cleanser because of its ability to act as an emulsifier.
4. Write or tell a story about the history and origin of soap.
A soap like material found in clay cylinders during the excavation of ancient Babylon is evident that soap making was known as early as 2800B.C. Soap got it name according to an ancient Roman legend, from Mount Sapo where animals were sacrificed.
5. Name seven forms of soap.
Seven forms of soap are medical soap, shaving soap, liquid soap, technical soap, toilet soap, complexion soap, and hand soap.
6. What is scum?
Scum is the substance which results from the reaction of the hardness mineral in water with common household soaps. Evident as a bath tub ring or on shower doors.
7. Carve an object from a bar of soap.
Here are some pathfinder soap carvings for examples.
