Egg-in-a-bottle

Impress your friends and family with this simple, quick, and super-cool science trick! You'll learn how to harness the power of expanding and contracting gasses to suck an egg into a bottle in which it would never normally fit.

  1. Ages: 9 - 16

  2. <30 minutes

  3. A little messy

  4. Grownup needed

Step-by-step tutorial

  • Step 1

    Gather the materials for your egg-in-a-bottle experiment!

    Photo reference of how to complete step 1

  • Step 2

    Gather the materials for your egg-in-a-bottle experiment!

    Photo reference of how to complete step 2

  • Step 3

    Carefully peel the shell off your hard-boiled egg. The smoother your egg, the better this experiment will work!

    Photo reference of how to complete step 3

  • Step 4

    With some parent help, light the end of the strip of paper and place it inside the jar.

    Photo reference of how to complete step 4

  • Step 5

    Quickly place the egg on top of the jar before the paper burns out. If you look closely, you should be able to see the egg vibrate ever so slightly as the paper burns.

    Photo reference of how to complete step 5

  • Done!

    The flame will quickly go out, and when it does, don't blink! Your egg should start to compress and will get sucked down into the bottle. Ta-da! You've successfully managed to get your egg in the bottle. So what's happening? As the flame burns inside the bottle, it heats up the air around it, causing it to expand. If you saw your egg vibrating slightly, this was because the air was escaping from the bottle. When the flame goes out, the air in the bottle cools and shrinks. This is what sucks your egg into the bottle! To get your egg out of the bottle, simply cut it into a couple of smaller chunks by poking it with a knife. Then tip the jar to dump out the pieces.

    Photo reference of how to complete step 6

You might also like

Share what you made & tag us at!

;