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
Step 1: Things You'll Need
You'll need the following for this experiment:
Optional Method 2 (step 7) additional ingredients:
Step 2: 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
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
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.
Step 5: Watch the Magic
Your egg will settle and create a seal with the glass jar. Once sealed, the matches will run out of oxygen and extinguish. As the air inside the bottle cools, it will condense (you can see the gas cloud forming!). As it condenses, the pressure exerted on the egg from the inside of the bottle will decrease. There has been no change on the outside of the bottle and the egg, the pressure from the outside on the egg is still the same. The pressure outside is also now stronger, pushing the egg into the bottle. You can watch the pressure change as the egg deforms and gets sucked into the bottle.
Step 6: Ta Da!
You've got yourself an egg in a bottle. Show and wow your kids and friends.
Step 7: Optional Method #2
If you'd like to avoid the matches and fire, you can recreate the same experiment with boiling water.
Step 8: Removing the EggOption 1: Simply invert your bottle/jar so that the egg has repositioned itself at the opening. Run hot water over the back of the bottle until the air inside has had a chance to heat up. The gas inside will expand and push the egg out.
Option 2: Carefully stick an object with a blunt end into your bottle. Break up the egg and shake it out--gently.