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General Science / Does washing our hands with soap and water remove more germs than just water?

« on: 14/08/2018 04:52:43 »

 Everytime I ask how soap makes our hands cleaner from germs ... The answer i get is ... You are essentially washing away oils because one end of soap molecules love water - they are hydrophilic. The other end of soap molecules hate water - they are hydrophobic. This allows oils and grease to removed....

But how does this correlate to our hands being cleaner from germs and bacteria.

How does soap work to make us cleaner?  Are the bacteria and germs clinging on to these oils?  and washing with soap helps rinse them away?

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General Science / Re: How does soap make us more clean than just water does?

« on: 02/08/2018 01:19:01 »

Thats what I was wondering.   We are essentially washing away the oils on our hands.   So the germs and bacteria are basically clinging on to these oils.   then washing with soap thus would help wash away germs, bacteria, dirt, oils, etc..

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General Science / How does soap make us more clean than just water does?

« on: 21/07/2018 23:45:25 »

Why exactly do we use soap on our hands when washing instead of just water?   I know soap removes oil and that soap is hydrophobic.   But how does this correlate to removing germs and bacteria from our hands?  Why dont we just use plain water?   Basically.. How does soap work and what is doing to remove germs?  Not antibacterial soap.  Just plain old soap

Same thing with shampoos and body wash, etc.   Why do we wash our hair with shampoo, how does it make us cleaner besides just removing oils? 

We use soap on our bodies as well to make us smell better..  Why?  Does rinsing away these oils on our bodies have something to do with make us cleaner?