Instructables
Picture of How To: Get an Egg Through a Bottleneck
A quick, easy tutorial on how to get an egg through a bottleneck and into a bottle--a classic, wow your friends science experiment. 

Bottom line, science is cool. It's got the wow factor of magic and the additional bonus in that it helps us explore the world around us. This experiment is no exception. Amaze your kids and friends. Then seize the opportunity to explain the magic behind it.  :D



 
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Step 1: Things You'll Need

Picture of Things You'll Need
You'll need the following for this experiment:
  • Safety Glasses
  • Hard Boiled Eggs
  • Glass Jar or Bottle*
  • Matches

Optional Method 2 (step 7) additional ingredients:
  • Optional Method 2: Boiling Water
*NOTE: Before carrying out this experiment, you'll want to make sure you pick the right jar/bottle. Ideally, the opening of your jar/bottle should be larger than half of the diameter of the egg, and smaller than the diameter of the egg (so that it doesn't slip through!). If you're unsure, do a quick visual test by placing your hard boiled egg on top the opening.

Step 2: Safety First

Picture of Safety First
Put on those safety glasses. Check your surroundings and make sure they are clear of any flammable items.

This is also a great time to peel your eggs if you haven't done so yet. 

Step 3: Light Your Matches

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Check your surroundings and make sure you have nothing flammable in the area. Strike and light three matches. Let them burn for a second before gently dropping them into the bottom of your jar/bottle. 

NOTE: The lighting of a match should be performed by an adult or supervised by an adult. According to the Kid's Health site, matches are still the leading cause of fire related injuries and death among young children. 

Step 4: Add Your Egg

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Your matches should extinguish pretty quickly so you've got to work fast. After your matches have been dropped in, place your egg on top of the opening to your jar/bottle with it's skinny end facing down. 
Ashurii8 months ago
There goes my evening! Great ible and thumbs up for kid safety reminder ;)

Pro tip: Do not try with a raw egg, lol.

55555555555558 months ago

work great but there is a way without having too have those matchstick in with the egg . Yes the egg stay hole but it's a little more work!

jdwebster10008 months ago

I did this for a science experiment in 8th grade. https://www.youtube.com/watch?v=N9lI0WeSIUs here is a video of it. ENJOY!

chandshar8 months ago

it can be done by putting the bottle in boiling hot water, empty out , then place egg on top and wait for it to cool and suck the egg in

newberries8 months ago

But how do you get it OUT?

Chucknsc8 months ago

folks I'm a simi retired ole'fart (56) who loves simple humor , simple thought, nature, and anything that makes sense. This is a perfect example! At this point in my life, instructables is one of the BEST reads I come across in my daily activities

billyoungm8 months ago
How do you get it out? I'm thinking a bell jar and vaccum pump.
Spokehedz8 months ago

Redhead matches... And yet they are green. SCIENCE!

jensenr308 months ago

this is really neat. I'll have to try this out this weekend.

martis_ltu8 months ago

This experiment is so old and popular.. They even put this on physics books.

And people are still copying this experiment :D

muddog158 months ago
I usually do this with normal eggs. haven't broken one yet!
狼图腾8 months ago
I like it
Znaffi8 months ago

Nice instructable! And i love that "pop" sound in the video xD

nerfrocketeer8 months ago
I've always loved this trick! Haha great 'Ible!
Ninzerbean8 months ago

You can also soak the egg in vinegar for a few day, it's gets so rubbery that it will go in the bottle without breaking.

Biodynamic8 months ago
That's a fun experiment. I have unsuccessfully tried a third way to get the egg out by inverting the bottle and blowing into the mouth of the bottle before the egg has a chance to fill the opening. Difference in pressure is supposed to do the trick, but I almost always resort to method 2. Great job on the instructable!

This is really neat, thanks for sharing!