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Soap is a substance people use today for a cleanser, bug repellant, or something to help with fixing something. Soap is widely used around the world. IT is very helpful to us and modern society especially because hygene plays a big part in life today. In the ancient times, only the rich could take baths with soap but the soap was made with ashes instead of lye. The principle is the same, because both soaps remove oil by trapping in into a bubble using its molecules, then is washed off with the water, taking off both soap molecules and dirt.
Soaps today uses many different ingredients. The main soap ingredients are oil, lye, water, and scent or dye to make it appealing. The oil that is used can be very critical to the overall value of the soap. You must use vegetable or animal oils rather than petroleum-based oils. Olive oil can make small but thick bubbles, and Coconut oil can make large bubbles, but it can end up drying the skin. Lye is one of the most important ingredients to making soap. If there is no lye, there is no soap. This is because the reaction between the oil and lye is what makes the soap. Water is still needed to make soap. Water can make a bar of soap by holding the ingredients together, but if too much water is applied, then a softer soap bar will form.  As early as 2800 BC, people from Babylon were already using soap. They were a bit different and used ashes to get the lye. 
There are many types of soaps. The types of soaps are cleansers, detergents, laundry, personal, novelty, medicated, transparent, glycerin, and liquid soaps. All of these soaps take different ingredients, or as small of a change like a bit more water. It is pretty cool how much a soap can change with the little things added to it. Soap can be good for someones face or acne when it isn't a bar type soap and includes ingredients that kill bacteria. It can change its purpose when it is a bar soap and instead, becomes more harmful to the face than helpful.
Soap has many different uses. They can clean many things like shirts, dishes, wood, windows, and the body. On top of that, they can be used for other things like being a weed killer or, a bug repellent. Soap can clean shirts by removing the dirt and oil stains from the shirt when it is washed with soap. Soap can also be used as a bug repellant if you place a bar of soap near the plants. Sometimes it won't always be the healthiest way to protect certain types of plants. Soap can also be used to remove squeaking in wooden parts of the house. Soap is also used as a trick for some engineers that have trouble in drilling or hammering a nail into wood.
This video explains how soap works, chemically.
- Soap Ingredients HSCG. Web. accessed March 7, 2018. Author Unknown.
- Garms, Gabe Turning your wood ash into lye for soap Raven Roots. Web. December 9, 2015.
- Types of Soap Soap History. Web. Accessed, March 7, 2018. Author Unknown.
- Jorgustin, Ken. 20+ Other Uses for Soap Modern Survival Blog. Web. Created February 14, 2018.