Soaps , Shampoo & Detergents

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Edit   Delete - Last Modified By: FBA at 5/08/2016 12:44:25 PM

Hydrophobic vs Hydrophilic

Watch the video. Find the definition of the words hydrophobic and hydrophillic. Give an example of each.

Edit   Delete - Last Modified By: wgoo at 26/07/2017 8:30:21 PM

Looking for a more detailed explanation of soap structure and formation?

http://www.bbc.co.uk/education/guides/zg6hhyc/revision/2

Edit   Delete - Last Modified By: tco at 23/11/2015 11:38:26 AM
Edit   Delete - Last Modified By: FBA at 16/08/2016 8:45:10 AM
Edit   Delete - Last Modified By: tco at 23/11/2015 1:02:38 PM

 

UNIT 1.5 Questions

Complete Q 1, 2, 3, 4,5, 7, 8, 11, 12, 14, 15, 16 

Edit   Delete - Last Modified By: tco at 23/11/2015 1:04:10 PM

go to page 44 and complete the experiment on making Soap.

Edit   Delete - Last Modified By: FBA at 4/08/2016 10:43:07 AM

Investigating surface tension.

 

1. Get a 1c coin and see how many drops of water you can add to it's surface before it spills over.
Record your top result on the whiteboard up the front!

2. Add a tiny drop of detergent to the middle of the coin before starting again. How many drops can you add now?

If time: does hot/cold water affect how many drops are added?

Edit   Delete - Last Modified By: tco at 16/08/2016 2:25:59 PM
Edit   Delete - Last Modified By: FBA at 31/08/2016 8:10:15 AM