Eggstra-strong 2

What's this Science Bite about?

Proving that eggs are not as fragile as you think!

Some eggs may be harmed in the making of this Science Bite - make sure you ask a parent or guardian before you try this!

What you'll need

  • Eggs
  • Bin bags/newspaper to cover the floor (in case it goes wrong!)
  • Confidence

How to do the experiment

Follow the instructions in the video below.

Can't see the video above? Watch it on Youtube.

  1. Make sure you take off all the rings on your fingers as this acts as a pressure point and will break the egg. Small eggs work much better than large eggs. Rest the egg in the palm of your hand with the long edge pointing towards your thumb.

    Rest the egg in the palm of your hand with the long edge pointing towards your thumb.
  2. Wrap your fingers around the egg making a fist, gradually apply pressure evenly and the egg will not break no matter how hard you squeeze!

    Wrap your fingers around the egg making a fist, gradually apply pressure evenly and the egg will not break no matter how hard you squeeze!
  3. For this part you will need a tray of eggs longer than your feet.

    Take your shoes and socks off. Lay out bin bags or newspaper to cover the floor in case it all goes wrong! Make sure the eggs are the same size and all facing the same way with the pointed side up.

    Ask someone to help take your weight as you step onto the eggs, they can let go when you have both feet on the eggs. Make sure your feet are as flat as possible (don’t go on your tip toes!) You should now be standing on eggshells

  4. Ask someone to help take your weight as you step onto the eggs, they can let go when you have both feet on the eggs. Make sure your feet are as flat as possible (don’t go on your tip toes!) You should now be standing on eggshells.
  5. For those of you who are really confident you can even try walking across the eggs, for this you will need at least 3 cartons of eggs to step across. Again put down something to cover the floor and lay the cartons out where you will be stepping. Carefully step on the first carton, ask someone to help you keep balanced. Now slowly step across the eggs, trying to keep your feet as flat as possible.

    Now slowly step across the eggs, trying to keep your feet as flat as possible.

Find out more...

The eggs shells are strong due to their oval shape. The rounded dome shape means the forces are distributed evenly across the whole of the shell, this allows them to take much more weight than you might think! The strength of the eggs means that hens can sit on them without breaking!

Eggs do not stand up to uneven forces very well which is why we can crack them on the side of a bowl.

Curriculum links

Forces

SCN 1-07a

Earth's Materials

SCN 3-17a

TripAdvisor

Glasgow Science Centre