Tuesday, March 10, 2015

Separating water into H2 and O2

 Here we connected two pieces of copper wire to a 9-volt battery.  We filled two test tubes and a beaker with distilled water.  We added baking soda to the water because we needed the ions to transfer the H+ and the OH-.  Hydrogen gas formed readily but the oxygen gas was inhibited by the copper oxidizing at the anode. We are going to try this experiment again with different electrodes.

Here's a bright idea!

Thursday, March 5, 2015

Snow Day

What we do when school is out and mom is home.

We bake.

This is the best icing I have ever had.  I has five ingredients and none of them are shortening.  Here is the link to the recipe.  If you don't care for super sweet icing, then this icing is for you.

The morning was spent baking, then we moved on to science.  We covered acid/base reactions by using vinegar (HC6H12O2), Ammonia (NH3) and Phenolthalein.

Awesome Day!