In this science experiment we will make a rubber chicken bone using a clear jar, vinegar,
and a bone. The resulting bone will become rubbery and squishy as we  dissolve the
calcium inside. So let get to it and do the Rubber Chicken Bone Experiment.

Materials

- Clear Glass Jar with Lid
- Chicken Bone. Big Leg Bones Work Well. "The Drumstick"
- Vinegar

Watch Video; Rubber Chicken Bone Experiment




















Process Rubber Chicken Bone Experiment:
1. Cook up a nice chicken for dinner. Then take one of the big leg bones and wash off all
the extra stuff. Take notice of how stiff the bone is before you start the experiment. The
stiffness in chicken bones comes from the mineral calcium inside. Just like in human
bones calcium makes them hard and strong.

2. Take the lid off the glass jar and fill with vinegar.

3. Drop the chicken bone into the jar and make sure the entire bone is submerged under
the vinegar.

4. Screw the lid on tight and let it sit for 5-7 days.

5. After 5-7 days of  sitting remove the bone from the jar. How does it feel now? Is it still
stiff? Or has it taken on a rubbery feel. Can you make the bone bend now?

The Science Behind Rubber Chicken Bone Experiment:
Let's explore what happened. The secret to making a hard bone become squishy is the
vinegar. Vinegar is a mild acid. The acid contained in the vinegar dissolves the calcium
inside the bone. After the calcium has been dissolved away, the bone becomes squishy
and bendable because there is nothing left to keep the bone hard. The only thing left
behind is soft bone tissue. This is a great example of why your parents always ask you to
drink more milk. Milk is a great source of calcium. And calcium makes our bones strong.


If you want to turn this experiment into a science fair project then address the following
questions.

1. How does the length of time the bone is in vinegar affect how much the bone bends?

2. How do other bones (smaller or larger) do in the same amount if time under vinegar?
Are they harder or squishier.

3. Try various types of vinegar and measure the affect how squishy or bendable the bones
become.

4. Use the
scientific method to explain the results and write up your project.

Now get your friends and do the rubber chicken bone experiment.

Related experiments to try:

Soft Shell Eggs
Folding Egg
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
Rubber Chicken Bone www.weirdsciencekids.com
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