Grade 9
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Grade 9 Biology Project 3 - The Amazing Workings of a Human Heart and Lungs



Purpose: 


The purpose of this science fair project is to explain how the human heart and lungs function.  The function of these vital organs will be demonstrated by building a stethoscope to listen to a heart beat.  The heart rate of individuals will be monitored while they are at rest and after exercising vigorously.


In addition, a diaphragm will also be constructed to show how the human lungs work.  The virtual diaphragm will demonstrate how it affects chest pressure.


Buy the Complete "The Amazing Workings of a Human Heart and Lungs" Project & 4 other Grade 9 Biology Projects for only $1.00:


Read This Before Placing your Order:


  • This is a downloadable e-book program.

  • You will NOT receive a physical package shipped to you in the mail.

  • Once you have made your payment via PayPal, select the option to return to this website

  • You will be returned to the download page where you can immediately download all 5 projects and get started right away.

  • This program is NOT available in stores, so you can only access it through this website.


If anything goes wrong with your purchase, and you did not get to the download page, please contact me and I'll email you the download link (this could take up to 24 hours)


Hypothesis:  


The heart rate of the test subjects (other students) will be higher after vigorous exercise.  The position of the diaphragm affects the pressure in the chest.


Variables:


  • Heart beat at rest versus after exercise
  • Position of the diaphragm

Materials Needed:


For the stethoscope you will need:


  •         Small funnel
  •         Glass T-tube or Y-tube
  •         Rubber tubing

For the diaphragm you will need:


  •         Rubber tube
  •         Clamp
  •         Rubber band or string
  •         Y-Tube
  •         Bell jar
  •        Rubber balloons
  •         Sheet rubber
  •        Rubber Stopper

Buy the Complete "The Amazing Workings of a Human Heart and Lungs" Project & 4 other Grade 9 Biology Projects for only $1.00:


Read This Before Placing your Order:


  • This is a downloadable e-book program.

  • You will NOT receive a physical package shipped to you in the mail.

  • Once you have made your payment via PayPal, select the option to return to this website

  • You will be returned to the download page where you can immediately download all 5 projects and get started right away.

  • This program is NOT available in stores, so you can only access it through this website.


If anything goes wrong with your purchase, and you did not get to the download page, please contact me and I'll email you the download link (this could take up to 24 hours)



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