Soak the bones in vinegar for at least a day. The longer the better for this experiment.
Leave the bones in the vinegar until it is soft and bendable. If you leave it for long enough you can even tie it into knots.
If you take the bones out of the vinegar and leave them overnight they will harden in the position that you have left them in. This happens as it reabsorbs the carbon from the carbon dioxide in the air.
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Why Does This Happen?
Vinegar is acidic and bones are made of roughly 10 percent calcium carbonate. Calcium carbonate forms a framework on which bone growth takes place. As the bones soaks, the calcium carbonate reacts with the acidic vinegar producing carbon dioxide gas. This gas is the bubbles coming off the bone.
From fossil formation to teeth and skin, the Digging Dinosaurs workshop has your unit on dinosaurs covered!
Get in touch with FizzicsEd to find out how we can work with your class.
Digging Dinosaurs
Years K to 6
Maximum 30 students
School Workshop
60 or 90 minutes
Online Class Available
Digging Dinosaurs
Years K to 6
Maximum 30 students
School Workshop
60 or 90 minutes
Online Class Available
STEM Full Day Accelerator - Primary
Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials.
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