Walk on eggshells

Walk on eggshells

Watch out, it could get eggy!

Do you think if you stand on one egg it will break? What if you stood on twelve eggs? Try this experiment from Steve Spangler and find out.

What you need:

  • Large plastic bin bag
  • Bucket of soap and water
  • Friends
  • 6 boxes of 12 large eggs

How to:

Remember, if you break an egg you should clean up and wash your hands. Raw eggs can contain bacteria which cause food poisoning.

Do this experiment outside, it could get messy!

If you can't get hold of enough eggs to do the experiment, watch this video instead:

1. Check there are no breaks or cracks in any of the eggshells.

2. Make sure all the eggs are facing the same way in the egg boxes. Put the pointy end down and the rounded end facing out of the top of the box.

3. Spread the bin bag and put the egg boxes on top of the bin bag in rows.

4. Take off your shoes and socks.

5. Ask a friend to help you as you step on the first box of eggs. You need to make your foot as flat as possible.

6. When your foot is properly positioned, you can gently put your weight on it whilst you position your other foot on the second box of eggs.

7. Start walking! You might need to keep your friend for support.

Have you managed it? If your foot is flat and your friend supports you, you should be able to walk on eggshells. Otherwise, your feet could end up very eggy!

What's happening?

Eggs are surprisingly strong. Their shape means that they are strongest at the pointy end and the rounded end.

The curved shell distributes pressure evenly over the egg. If you hold an egg and squeeze it on the top and bottom, the egg won't break.

But eggs can't cope with uneven forces, which is why they crack easily on the side of a bowl.

The egg box also helps to stop the eggs from breaking. Each egg is supported by the box and kept separate from other eggs.

Curriculum information

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