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Chicken Bone in Liquid Substance Expiriment

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Erin O

on 3 June 2013

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Transcript of Chicken Bone in Liquid Substance Expiriment

Conclusion Erin Ospina chicken bone In Liquid substance expiriment Hypothesis Variables Materials If I put a chicken leg bone in the substances of vinegar, milk, water, and ammonia; then the bone in vinegar would be the most decomposed after 1 hours *1 cup of vinegar,
milk,
water,
and ammonia each *Measuring cup (1 cup)
*Four 2.9 cup holding
plastic bowls
*4 chicken leg bones (cooked)
*1 Measuring Tape Independent Variable: Liquid Substances (Vinegar, Milk, Water, and Ammonia)
Dependent Variable: Decomposition rate (The length around the leg bone center from the original length)
Control Variable: Chicken Leg Bone
1 cup of each substance
Room Temperature at 68 degrees Fahrenheit
Time 1 hour Question What liquid substance would a chicken bone decompose the most in? Research When I did my research for my project, my main research went to the liquid substances I was to use in my experiment and the chicken bone. I researched vinegar, and I found that vinegar is made of mostly acetic acid and water. I also found that chicken bones become weaker and, “rubbery” when left in vinegar. They do this because the calcium in the chicken bones dissolve from of the acid in vinegar. Chicken bones are made mainly of calcium phosphate, collagen, and water. I also found that ammonia is a weak base, and an very weak acid. Milk, a substance in my experiment, is what I also researched. Milk is 3.2g Protein, 3.9g Fat, 15 mg Calcium, and 87.8g water. Procedure 1. Set room temperature to 68 degrees Fahrenheit.
2. Measure out 1 cup of vinegar with measuring cup. Do so with all liquid substances.
3. Pour each 1 cup of liquid substances into four different 2.9 cup-holding bowls.
4. Measure length around the center of the chicken leg bones with measuring tape. Record the lengths.
5. Place 1 chicken leg bone into each bowl with the liquid substances in them.
6. Wait about 1 hour.
7. Take out chicken bones of the bowls.
8. Measure length around the center of the chicken leg bones again with the measuring tape. Record the lengths.
9. To find the decomposition rate, divide the second length you find after leaving the bone in the liquids by the first length you found before placing the bone in the liquids. A decimal will come up. The decimal is the amount of bone left after leaving the bone in the liquids for 1 hour. Observations The experiment started at 10:05 pm. All chicken bones float in their substances, except for the bone in milk, which seems to be touching the bottom.

Bones were taken Out at 11:12 pm. The ammonia bone was slippery/slimy, and the slimiest. Vinegar was next in slimiest, then milk, and lastly water. All the bones looked the same, just as if they were soaking in a liquid. The milk bone had pieces peeling off, also with vinegar but not as much. The Vinegar bone, unlike the research suggested, was not rubbery and bendable. Chicken Measurements ammonia bone: 1.7 inch circumference (4.3 cm) before being Placed in Ammonia, 1.5 inches circumference (3.8 cm) after being left in ammonia for 1 hour. 88.2 percent of original.

Vinegar Bone: 1.5 inch circumference (3.8 cm) before being placed in vinegar, 1.4 inch circumference (3.6 CM) After being left in vinegar for 1 hour. 93.33 percent of original.

Water Bone: 1.4 inch circumference (3.6 cm) before being placed in Water, 1.25 inch Circumference (3.2 cm) after being left in water for 1 hour. 89.2 percent of original.

Milk Bone: 1.5 inch circumference (3.8 cm) before being placed in Milk, 1.6 inch circumference (4.1 cm) after being left in milk fir 1 hour. 106.66 percent of original. Flaws Possible Flaws in the experiment include:

*Bad measurements
*Putting the cap on the ammonia container in the middle of the experiment (Done for safety reasons) The results conclude that the ammonia was the substance that caused the chicken bone to decompose the most. my hypothesis, however, was incorrect because vinegar made the bone decompose 3rd highest of all 4 substances. Water was 2nd highest in making the bone decompose, which was surprising since water probably has little acid in it, if there is any at all. The milk bone was last in making the bone decompose, and it actually made the bone's circumference larger. I infer that the chicken bone soaked up the milk like a sponge would. Overall my experiment ran well with few flaws and with interesting results that were unexpected but brought knowledge to the powers of each substance that would combine with a chicken bone.
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