Grade 4
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Grade 4 Science Experiment 2 - "Find the Bacteria Hiding in your Milk"




Buy "Find the Bacteria Hiding in your Milk" AND 4 Other Complete Grade 4 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)



Purpose:  


The purpose of this science fair project is to determine how much bacteria is present in the milk that you drink.  It is necessary to find the amount of bacteria present in your milk to make sure that the milk is safe to drink.  You can use the "Methylene Blue Test" to determine the amount of bacteria in the milk.  Adult supervision is required.


Hypothesis:  


Milk with the highest number of bacteria will turn from blue to white the fastest.


Variables:


Test tube with methylene blue

Time


Materials Needed:


  • Methylene Blue Solution (Ask your science teacher for this solution)
  • Refrigerated milk
  • Two calibrated test tubes that have rubber stoppers
  • Two medium size glass jars
  • Two-hole test tube stand
  • Thermometer
  • Calibrated (cc) medicine dropper
  • Tongs
  • Watch
  • Hot plate
  • Saucepan

Get the rest of this project here: 



Buy "Find the Bacteria Hiding in your Milk" AND 4 Other Complete Grade 4 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)