How Long Can You Hold Your Breath?

Ali holds his breath while Charles assists

Today the Lively Ladybugs have been learning about the respiratory system. One thing that we learned is that our body cannot store oxygen and uses it up very quickly, which is why we have to keep breathing.

Today we did an experiment to test how fast our body uses up oxygen. We all timed ourselves to see how long we could hold our breath and we recorded the time it took until our bodies needed more oxygen. We did this test a second time, but this time before we held our breath we inhaled and exhaled very quickly many times. We found that we can hold our breath quite a lot longer after we breathe in and out right before because when we breathe quickly we are allowing more oxygen into our blood. Then when we hold our breath it takes our body longer to use up the extra oxygen we inhaled!

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3 Responses to How Long Can You Hold Your Breath?

  1. Callie Lane says:

    I’m glad you enjoyed reading about it. One student held his breathe for 1 minute 12 seconds! Mice don’t like cheese? We need to find a mouse; this sounds like a great experiment to try ourselves!

  2. jim says:

    Hello from Michigan. i just read your post and wondered who in your class was able to hold their breathe the longest.

    I invite you to check out our 5th grade blog called The Skinny and add us to your blogroll if you like what you see.

    🙂

  3. Wow, cool experiment! We love science and we have just finished exploring physics by holding The Great Egg Drop.

    Check out our blog to see our pictures.
    http://2010wallsendsuperstars.edublogs.org/

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