Реферат по предмету "Иностранный язык"


Do Cleaning Chemicals Clean As Well After

They Have Been Frozen Essay, Research Paper

Do Cleaning Chemicals Clean As Well After They Have Been Frozen

Problem:

The researcher is trying to determine whether or not cleaning materials

will clean as well if they have been frozen solid and subsequently thawed out

until they have returned to a liquid state of matter.

The researcher will use Dial Antibacterial Kitchen Cleaner, Clorox

Bleach, and Parson’s Ammonia, applied to simple bacon grease, to determine which

chemical is least affected by the glaciation.

Hypothesis:

The researcher feels that the process of glaciation will degrade the

ability of these three household cleaning chemicals to breakdown the most common

kitchen cleaning problem – grease.

For example, the freezing, thawing, and then freezing again of ice cream

puts the substance through the freezing process. The result is a separation of

heavy and light substances which breaks down the food. The researcher feels that

the same end result may happen with the cleaning materials.

Experimentation

Test Concept:

In order to determine weather the glaciation process affected the

cleaning chemicals, it is first important to establish its potency prior to

freezing. Accordingly, two test sets were created by the researcher. The purpose

of the test was to determine how well the chemicals could break down household

grease before and after the substances were frozen. The first test set would

focus on unfrozen chemicals, while the second was set up for previously frozen

chemicals.

The Test:

To start the experiment the researcher fried four pieces of bacon until

there was enough grease in the skillet to perform the test. He then put a

quarter teaspoon of the grease onto two nine by thirteen casserole dishes. Each

casserole dish was set up for three frozen and three unfrozen chemical cleaners.

A measured amount of cleaner (both frozen and unfrozen) was added to each spot

of grease. After approximately two minutes of breaking down the grease, the

dishes were raised to a uniform height at one end and the broken down grease was

allowed to run. By measuring how far the grease ran, the researcher could then

determine how much the cleaner broke down and therefore which cleaner was

affected by the glaciation.

Resources

The resources for this experiment were acquired from the labels of the

chemicals. Research was also done to try and find information about Chlorine in

the Clorox Bleach but ended unsuccessfully. There was also research done to find

out about the reason the 409 degreaser performed so poorly.

Conclusion

The researcher has concluded that the previously frozen chemicals performed

just as well if not better than the unfrozen chemicals. See charts one and two

for details o




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