Comparative Study on Chalk Dust, Cinnamon Spice and Coffee Ground as Insect Repellants

1161 Words Jan 28th, 2013 5 Pages
Science Investigatory Project
COMPARATIVE STUDY ON CHALK DUST, COFFEE GROUND,
AND CINNAMON SPICE AS ANT REPELLANTS
Faith II Group of Year III- St. John
CHAPTER 1
BACKGROUND OF THE STUDY: There are several household problems we and our helpers encounter at home. These may be issues regarding food supply and storage, cleanliness and sanitation. One of the most common problems is the presence of household ants, especially the red ones, causing a disturbance in our own system of food storage. Red household ants do not only infest stored food in the kitchen but also bite our skin and destroy well- landscaped gardens by building ant hills. Because of this observation, we decided on conducting a study that would eliminate ants with the
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By the 16th century, coffee was roasted before being ground and boiled in water. The entire resulting mixture of liquid and grounds would be consumed. The invention of the Ibrik (A small pot used in brewing and serving Turkish coffee that was invented in the late 16th century.) allowed for a more skillful technique of brewing. In the 18th century, the French developed the drip brewing technique wherein coffee is produced by using a cloth bag as a filter to separate grounds from the liquid coffee. This technique allowed for steeping the coffee at a lower temperature as it was not brewed while constantly adding heat. (Retrieved from http://coffee.wikia.com/wiki/Brewing)

Chalk in Prehistoric Times As found in nature, chalk has been used for drawing since prehistoric times, when, according to archaeologists, it helped to create some of the earliest cave drawings. Later, artists of different countries and styles used chalk mainly for sketches, and some such drawings, protected with shellac or a similar substance, have survived. Chalk was first formed into sticks for the convenience of artists. The method was to grind natural chalk to a fine powder, then add water, clay as a binder, and various dry colors. The resultant putty was then rolled into cylinders and dried. Although impurities produce natural chalk in many colors, when artists made their own chalk

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