The Spinning Egg Experiment — Are your Gemperle Eggs Hard Boiled or Raw?

Have you ever opened the egg carton in your refrigerator and forgot whether the eggs were hard boiled or raw? Are you also looking for a quick engaging science experiment to try with your kids. Here is a fun experiment to do with your kids and you will learn some physics as well. Have fun with your kids like we do at our Gemperle Egg Ranch.

The Spinning Egg Experiment

Items needed: Hardboiled egg, raw egg (preferably Gemperle eggs), table, pencil

What to do:
1. Have your parent assist you in hard boiling your egg. Then mark it as hard boiled.
2. Now spin both the raw and hard boiled eggs. What do you notice?
3. Spin again and put your finger on them lightly to try to stop them. What happens now?
4. Try spinning both eggs at different speeds. What do you see?

So now think about what’s happening
Hard boiled eggs spin easier and faster. Why? The insides are solid!
Raw eggs are harder to spin. Why? The insides are liquid and are sloshing around and continue moving when you are trying to stop the spinning. Do you think the insides of the raw egg are spinning at a different rate that the shell of the raw egg?

The physics?
The raw egg’s center of gravity changes as the white and yolk move around inside the egg. This causes the egg to wobble around. When you try to stop the egg with the tip of your finger the shell continues to move. This is because of inertia, the same type of force you feel when you are in a car and it suddenly stops, your body wants to continue moving forward. Inertia causes the raw egg to spin even after you have stopped it. When you try the same spin with the hardboiled egg the solid insides responds much quicker when you try to stop the spin.

For more fun kids recipes, science experiments and crafts using nutritious Gemperle eggs go to our kids corner of our Gemperle Egg Ranch website at www.gemperle.com