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Bone Experiment

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abby bonnanzio

on 3 December 2013

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Transcript of Bone Experiment


Baking Bones
After baking the chicken bone for 3 hours at 250 degrees, there was a clear difference between the uncooked and cooked bone. Because baking the bone breaks down collagen, it was easier to break the baked bone in half. We came to the conclusion that collagen is important because it allows for a stronger bone.
Soaking Bones
in vinegar
By Abby Bonnanzio and Ally Lustbader
How do the bones feel?
After taking the bone out of the oven and letting it cool, the bone felt hard, much like the unbaked bone. However, the difference between the two bones-baked and unbaked- was that the baked bone felt more brittle to the touch.
Do they bend easily?
Neither of the bones bent easily. The uncooked bone was especially hard to bend. The baked bone was difficult to bend without it snapping in half.
What happens when you try to break them?
When I tried to break each of the bones, it was not possible for me to break the unbaked one because it was too tough. However, the cooked bone was very brittle and I found it very easy to snap in half.
How do the bones feel?
Before this whole process, the two bones felt identical to the touch. After the whole process, the bone that was soaked in vinegar felt rubbery and bendable. It seemed like the hard outer layer had been taken off. The bone that was beside the jar felt hard and stiff, like it did before the process.
Do they bend easily?
The bone that was soaked in vinegar bends more easily than the bone that was beside the jar. Because the soaked bone was so thick, it was hard for me to really bend it. But the soaked bone was definitely more flexible than it was before it was soaked in the jar. The bone that was beside the jar was just as unflexible as it was before this whole process.
What happens when you try to break them?
If the bone that I soaked had been any thinner, I would have been able to break it pretty easily. Because this bone was so thick, it was pretty hard for me to even bend let alone break. The bone that was next to the jar was impossible to break because it had not lost it's hard outer exterior.
Vinegar is a mild acid that breaks down calcium. When one bone was soaked in vinegar, the calcium within the bone was completely broken down, leaving only soft bone tissue. This caused the bone to be more flexible than it was before. Calcium provides the quality of strength, which was broken down in this experiment.
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