Here is a fun project you can do at home -- bouncing an egg! It is pretty simple and takes a day or two, but it's worth your time.
Step 1: Put the Egg in Vinegar
First, you want to put the raw egg into vinegar. After a few days, it will have NO white of the shell on it. This means it is ready to bounce. Take it out of the vinegar.
Step 2: Bouncing the Egg
To bounce it, you simply drop it from a short height (2 inches or so), then increase the height as you keep doing it.