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.
- 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.