Wednesday, September 10, 2014

Hello World!

Welcome to our fourth grade blog for the 2014-2015 school year.  Check back often to see what's happening in our class.  This is our first entry of the school year.  We hope you enjoy our pictures, and maybe you'll even learn a little.

In Science today we learned that plain water has more cohesion than soapy water.  Cohesion is when similar molecules stick together.  Soap reduces the amount of cohesion in water.

In this experiment we filled plastic cups with plain water and soapy water.  We wanted to find out which liquid heaped higher over the brim of the cup.  Plain water heaped higher because it has more cohesion.

Your student bloggers,
The Class of 2023

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