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  • Get Involved
    • Enroll Now!
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      • AVLO >
        • 2021 AVLO Forum
    • Volunteer Requirements
    • 4-H Alumni
    • Donate
  • District Programs
    • Anchorage
    • Bethel
    • Bristol Bay/Dillingham
    • Fairbanks/Tanana District
    • Kenai Peninsula
    • Kodiak >
      • Kodiak 4-H At Home Kits 2021
      • Kodiak Celebrates National 4-H Week
      • Interested Members
      • Kodiak Agriculture - Inspiring the Next Generation
      • Kodiak 4-H Camps
    • Mat Su/Copper River >
      • MatSu/Copper River 4-H News
      • MS/CR Scholarships
      • MS/CR At-Home Learning
      • 4-H at the Alaska State Fair
      • Livestock Program
    • Nome
    • Sitka
    • Southeast >
      • AK Experience Camp
      • Enroll in 4-H
  • Statewide Programs
    • Citizen Science
    • Teen Leadership Opportunities >
      • Youth in Governance
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    • Learn By Doing At Home
    • STEM / Healthy Habits
    • Shooting Sports
    • Public Presentations >
      • 2022 Alaska Statewide Presentation Contest
    • Alaska 4-H Livestock >
      • State Livestock Contest
    • Alaska 4-H Horse Program
    • 4-H Exchange Program
  • Resources
    • Learn & Lead Series
    • The 4-H Brand
    • Volunteer Resources
    • Professional/Volunteer Development and Training

learn by doing
at home series

STEM Challenge: Think like a Scientist

4/20/2020

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Project Discipline: STEM
​Ages: All ages
Difficulty level:​ Easy
Supplies: A plastic liter bottle, a couple of quarters, some water and a freezer!
Today we'd like you to follow a set of steps to make a plastic bottle burp, and then use your brains to figure out how it happened!  
  • First, put an empty plastic liter bottle into the freezer, and keep it in there for at least 1 hour (a few hours would be even better).
  • After you've waited, put a couple of quarters into a little dish of water.
  • Remove your plastic bottle from the freezer and quickly place the quarter over the top of the bottle. 
  • Wait and watch!  As your bottle burps, the quarter will move.  After each burp, readjust the quarter to close the seal again.  Count how many times your bottle burps! 

​How does this work?  Think about it first, and come up with your own conclusions, then take a peak at how Marla's project turned out this week, and what she has to say about how it works!

Be sure to share your results with us on the Alaska 4-H facebook page!

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