How do you make a rubber egg out of regular egg?

Materials:

* 1 raw egg

* White vinegar

* A clear glass jar (tall enough to hold the egg)

Instructions:

1. Place the egg in the jar: Gently place the raw egg into the jar.

2. Add vinegar: Pour enough white vinegar into the jar to completely cover the egg.

3. Wait: Leave the egg in the vinegar for at least 24 hours, but it's best to let it soak for 3-4 days.

4. Observe: As time passes, you'll notice bubbles forming on the egg's surface. This is the vinegar reacting with the calcium carbonate in the eggshell.

5. Remove the egg: After the soaking time, carefully remove the egg from the jar using tongs or a spoon. The eggshell should be soft and rubbery.

6. Rinse and play! Rinse the egg thoroughly with water. The egg will now be rubbery and bouncy, but be careful as it is still fragile and can break.

What's happening?

Vinegar is an acid. The acid in the vinegar dissolves the calcium carbonate in the eggshell, leaving behind a thin, rubbery membrane. This is why the egg feels bouncy and rubbery!

Safety Tips:

* Always supervise children when doing this experiment.

* Use caution when handling the egg after it's been in the vinegar, as it will be fragile.

* Don't try to eat the rubber egg!

Fun Fact: You can even make a rubber egg bounce! Just be careful, as it is still delicate.