Extreme Science: Egg in a Bottle - Spokane, North Idaho News & Weather KHQ.com

Extreme Science: Egg in a Bottle

Posted: Updated:
Extreme Science Logo Extreme Science Logo
SPOKANE, Wash. - What you will need:
  • Empty large-mouth glass bottle such as a Snapple ® bottle
  • Hard boiled (medium size) egg
  • Matches, candles and/or paper
  • Adult supervision

Procedure:

ATTENTION: NEVER, EVER play with fire! Please make sure that you have a RESPONSIBLE adult helping you with every step of this experiment. Children should NOT be allowed to use fire.

1. Carefully peel your hard boiled eggs.

2. Your egg should be slightly larger than the opening of your bottle so that it does not quite fit into the bottle.

3. Have an adult light a piece of paper or match and carefully drop it into the bottle. Make sure that the fire does not go out as soon as you drop it in the bottle. It should burn long enough to sufficiently heat up the air inside the bottle.

4. Place the egg vertically on top of the bottle opening.

5. As soon as the fire goes out, the egg should be forced into the bottle. Hopefully, without breaking the egg!

To get the egg out of the bottle:

1. Turn the bottle upside down.

2. Place your mouth tightly over the opening of the bottle and blow as much air into the bottle as you can.

3. As you remove your mouth, the egg should now be forced back out of the bottle. If it does not come all the way out, repeat this procedure of blowing more air into the bottle to increase the air pressure enough to force the egg out.

What is going on?

In the past, we used to think that the fire was burning up the oxygen, causing the pressure inside the bottle to drop, which in turn resulted in less pressure inside the bottle than outside the bottle. This difference in pressure then caused the egg to be pushed into the bottle. In the last couple of years we have realized that this explanation was incorrect. Although fire does require oxygen in order to burn, fire is the rapid oxidation of a material or substance in the exothermic chemical process known as combustion. This process produces heat and light energy. As the air inside the bottle heats up its volume increases, meaning that it will take up more space. Since the volume of the air inside the bottle has increased, yet the bottle remains the same size, air molecules are forced out of the bottle during the release of this heat energy. Since the egg is sitting on top of the opening of the bottle, as soon as the fire stops burning the air then cools down, all of the air molecules that were forced out of the bottle cannot get back in without forcing the egg into the bottle as well. As the air inside the bottle cools down, its volume decreases which then lowers the pressure inside the bottle.

In order to get the egg back out of the bottle, we now must increase the air pressure inside the bottle by blowing directly into the opening. Again, by holding the bottle upside down, we are placing the egg in between the two areas of varying air pressure. The area of high pressure then forces the egg into the area of low pressure.

Try this:

I have seen a video where someone placed two or three birthday candles into the top of the egg, lit them and slowly placed the bottle (upside down) over the candles which then forced the egg UP into the bottle using the same principles. I have not tried this but have heard that it works……

Radical Rick
Extreme Science
www.ExtremeScienceFun.com
509-892-7621

HD DOPPLER 6i
/
  • Success by 6More>>

  • Washington State school ratings for 2013-2014; How does your school rank?

    Washington State school ratings for 2013-2014; How does your school rank?

    Thursday, July 23 2015 5:40 PM EDT2015-07-23 21:40:00 GMT
    Thursday, July 23 2015 7:55 PM EDT2015-07-23 23:55:15 GMT
    SPOKANE, Wash. - The ratings for the 2013-2014 school year for Washington State high schools, middle schools and elementary schools came out this week from the Washington State Board of Education.>>
    SPOKANE, Wash. - The ratings for the 2013-2014 school year for Washington State high schools, middle schools and elementary schools came out this week from the Washington State Board of Education. The schools were ranked based on their average growth in math and reading of all students and specific subgroups.>>
  • KHQ honors this year's Teachers of the Month

    KHQ honors this year's Teachers of the Month

    Thursday, July 2 2015 12:17 PM EDT2015-07-02 16:17:15 GMT
    Thursday, July 2 2015 12:17 PM EDT2015-07-02 16:17:15 GMT
    SPOKANE, Wash. - It's the end of another school year... marking the 27th year KHQ and Eastern Washington University have partnered together to celebrate some of the region's best teachers through the Teacher of the Month program. Congratulations... from KHQ Local News and from Eastern Washington University.>>
    SPOKANE, Wash. - It's the end of another school year... marking the 27th year KHQ and Eastern Washington University have partnered together to celebrate some of the region's best teachers through the Teacher of the Month program. Congratulations... from KHQ Local News and from Eastern Washington University.>>
  • What the experts say about reducing the cost of college (sponsored)

    What the experts say about reducing the cost of college (sponsored)

    Friday, June 5 2015 1:44 PM EDT2015-06-05 17:44:37 GMT
    Friday, June 26 2015 2:34 PM EDT2015-06-26 18:34:46 GMT
    Tuition, fees, housing, books, financial aid, student loans, college savings plans. Yikes! With so many factors to consider, you might need a degree just to master the cost of attending college. For more great tips and a handy monthly budgeting worksheet, learn more from our friends at STCU.>>
    Tuition, fees, housing, books, financial aid, student loans, college savings plans. Yikes! With so many factors to consider, you might need a degree just to master the cost of attending college. For more great tips and a handy monthly budgeting worksheet, learn more from our friends at STCU.>>
  • Michael Anderson Elementary Wins Book Drive School Challenge

    Michael Anderson Elementary Wins Book Drive School Challenge

    Michael Anderson Elementary on the Fairchild Air Force Base took the Challenge- so did Windsor Elementary in the Cheney School District. Their mission -to collect books for the Success By 6 Book Bank.>>
    Michael Anderson Elementary on the Fairchild Air Force Base took the Challenge- so did Windsor Elementary in the Cheney School District. Their mission -to collect books for the Success By 6 Book Bank.>>
  • Got A Pre-schooler? Pick Up a Kindergarten Readiness Calendar

    Got A Pre-schooler? Pick Up a Kindergarten Readiness Calendar

    Got a Pre-schooler? Pick up the Kindergarten Readiness Calendar at any local library! Getting ready for Kindergarten starts long before your child sets foot in their Kindergarten classroom! That's>>
    Got a Pre-schooler? Pick up the Kindergarten Readiness Calendar at any local library! Getting ready for Kindergarten starts long before your child sets foot in their Kindergarten classroom! >>
  • Young Children Learn from Everyday Life

    Young Children Learn from Everyday Life

    They say kids don't come with an instruction manual, yet parents, especially new parents are bombarded with all kinds of advice from friends and family. There are books and websites offering endless lists, tips and tricks for parenting.  Jill Johnson, Communications Specialist for Family Resources at Community-Minded Enterprises and Success by 6 Board Member says you can teach your children with simple, everyday activities.>>
  • Want Your Child to Love Learning? Let Them Play!

    Want Your Child to Love Learning? Let Them Play!

    Want your Preschooler to Love Learning? Let them play! Gwendolyn Haley, Spokane County Library District Youth Services Manager, and Success By 6 Board Member, says playtime is the most important part of a preschooler's day.>>
  • Your Baby: 2 Months

    Your Baby: 2 Months

    Our Success By 6 Pediatrician, Dr. Mary Kay Wagner, host of our "Your Baby" series discusses the finer points of living with a 2 month old baby. >>
  • Local Community ConnectionMore>>

  • For Women Only

    For Women Only

    A collection of news, health information, fashion tips and more all in one place and for women of all ages.>>
    A collection of news, health information, fashion tips and more - all in one place and for women of all ages.>>
  • Saluting the Brave

    Saluting the Brave

    News, features and pictures of the men and women who bravely serve our country.>>
    An online community for local military personnel and their families.>>
  • Success by 6

    Success by 6

    United Way Success By 6® is the nation's largest network of early childhood coalitions, focused on improving school readiness through community change.>>
    Success By 6® is focused on improving school-readiness through community change.>>
  • KHQMD

    KHQMD

    KHQMD - presented by Rockwood Clinic and Deaconess Medical Center - Your Health, Right Now>>
    KHQMD - presented by Rockwood Clinic and Deaconess Medical Center - Your Health, Right Now>>