Today in Science my group did an experiment were we got milk, food colouring and a cotton bud, we put the cotton bud into soap and then we drop three colours of food dye into the milk after we did that we put the tip of the cotton bud into the milk and the colours move in all directions away from the cotton bud. After a long time of doing that the colours mixed into an emerald green.
The secret of the bursting colors is in the chemistry of that tiny drop of soap. Like other oils, milk fat is a non-polar molecule and that means it doesn’t dissolve in water. When soap is mixed in, however, the non-polar (hydrophobic) portion of micelles (molecular soap structures in solution) break up and collect the non-polar fat molecules. Then the polar surface of the micelle (hydrophilic) connects to a polar water molecule with the fat held inside the soap micelle. Thanks to the soap connection, literally, the non-polar fat can then be carried by the polar water. This is when the fun begins.
I found it easy to get the stuff we need to use for the experiment like the cotton bud and the soap my group got the rest of the things we needed.
I found it hard to know who was doing what in my group I didn't what we were doing that much in my group because this was my first time being in my real group so we didn't know each other.
I enjoyed putting in the cotton bud because it was so fun and cool seeing the colours burst into each other.
Next time I will let someone else have the first turn because I think they will enjoy it too.
Gday Olivia!
ReplyDeleteI really love this detailed reflection. I liked how you explained what happened and how when we kept on putting the bud into the milk it made everything go green. Maybe next time you could re-read and fix up some capital letters and full stops. But other that that this is a very good blog post.
From Toby.
Thank you very much Toby I'll try work on my capitals and full stops. So thanks :)
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