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Your Bones Need Calcium Experiment

This experiment demonstrates the importance of eating foods with calcium. Plus, it is just fun! First ask your child or class, Can you make an egg shell soft?

What you need:

one egg, glass, vinegar

Put egg in glass, pour vinegar over egg, wait several days .  Take egg out and feel shell.

The vinegar dissolves the calcium in the shell making it soft and rubbery. Note that this shows the importance of calcium to make the shell strong, just like our bones need calcium.

To extend this activity, ask questions, list foods with calcium, eat foods with calcium, write out the hypothesis before the experiment, guessing what will happen and record the results at the end.

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