plastic or glass bottle with an opening, slightly smaller than the egg
two large bowls, one filled with hot water and one
filled with ice cold water
Put the bottle in the bowl of hot water for about five minutes.
Move the bottle to the bowl of ice water.
Wet the egg and place it pointed side down in the bottle opening.
As the air inside the bottle cools, the egg will move into the bottle.
Heating and cooling the bottle changes the air pressure.
The cold air takes less space. The egg (and some more air) is
drawn into the bottle to fill that space.
To remove the egg,
hold the bottle upside down so the egg is near the opening.
Blow hard into the bottle with your mouth tight against the opening.
Take the bottle away from your mouth and point the bottle away from you.
Blow over the opening, changing the air pressure, and the egg will come flying out!
Notes to Parents:
Every parent must use their own judgment in choosing which activities are
safe for their own children. While Science Kids at Home makes every
effort to provide activity ideas that are safe and fun for children it is
your responsibility to choose the activities that are safe in your own home.
Science Kids at Home has checked the external web links on this page that we created. We believe these links provide
interesting information that is appropriate for kids. However,
the internet is a constantly changing place and these links may not work or the external web site may have changed.
We also have no control over the "Ads by Google" links, but these should be related to kids science and crafts.
You are responsible for supervising your own children. If you ever
find a link that you feel is inappropriate, please let us know.