Monday, November 21, 2011

Scientific Method: How Much Water Can a Diaper Hold?

A different, and very intriguing question to try to answer using the scientific method. 

For a basic investigation, you only need a diaper, water* and graduated cylinder (or measuring cup).  Just for fun, you could add a drop of yellow food coloring to your water supply... it might completely gross you out, but middle school boys will be completely sold on it!

Open the diaper and pour 100 ml of water onto it. 

Hold the diaper by the ends and gently rock it back and forth until the water is absorbed.

Continue to add water, in 100 ml increments until the water is no longer absorbed. 

To take the experiment one step further, you can compare the absorbency of different brands of diapers.  Make sure you use the same size diaper for each brand.  After gathering your results, you could even determine the diaper cost per mL of water held!  Do the more expensive diapers hold more water?  Remember, for the most accurate results, you should test several diapers of each brand. 


*I've always seen this basic experiment done with plain water.  But, if you'd like to simulate urine, mix 9 grams of salt into a liter of water and use that solution.  I've read that the diaper will perform differently with this solution than with straight water.  That sounds like an experiment worth trying! 

3 comments:

  1. I has suffered for Human papillomavirus HPV) for 2years, I was given some tablets at the hospital but I refused to take it, They said I have to be on it for life so I don't want take a drugs everyday for life. No point in taking medicine everyday when u won't get cure from it and I was advice to seek for natural herbal cure, after some time I found dr onokun is the most trustful herbalist that have herbs to cure wicked symptom's,I emailed dr onokun, for 2weeks been his patient he cured my (HPV) with his herbal. I only used his natural herbs for two weeks it was 100% cure. I'm not (HPV) patient anymore. I'm happy about it i finally got cured out of this mess been in my body for 2years. I also recommend you if you're living with (HPV) or herpes symptoms i also want you to be free contact dr onokun with the email attach to my post. Dronokunherbalcure@gmail.com

    ReplyDelete
  2. Can't still believe that i got cured from Genital Herpes through herbal treatment from Dr LUCKY  who I met through the internet, I actually couldn't believe it at first because it sounded impossible to me knowing how far I have gone just to get rid of it. Dr LUCKY send me his medicine which I took as instructed and here I am living a happy life once again, a big thanks to Dr LUCKY , I am sure there are many herbal doctors out there but Dr LUCKY did it for me, contact him on Email him; { drluckyherbalcure@gmail.com }  

    ReplyDelete

Note: Only a member of this blog may post a comment.