Un-Mixing

 

 

 Sometimes it’s better if Harvey doesn’t see how I keep Erik busy…

 

  I delayed this lesson a couple of times because it had a lot prep and took a while to complete.  We finally got to it today and it was a lot of fun.  Last time we experimented with mixing different liquids like oil/water and milk/water… Today we un-mixed different things.  Some were easy, like Legos and rocks and some were more difficult to figure out, like salt and sand.

 

 

 

 Ryan thought of cutting small holes in the bag for the sand to fall out, leaving only the rocks.  It worked, but it was slow.  We switched to the basket which was much faster.  We have lots of experience ‘unmixing’ sand and debris!

 

 

 

 

 

 

 

 

 

 

 

 

 

We even separated colors!