Co-op

This week we had our science co-op, hosted by Carolyn. As always, her experiments involved a little bit of a mess and a whole lot of fun!

Waiting for Co-op to begin

 We started off with a color dispersion experiment.

 Each cookie sheet was filled with milk. Each child added several drops of food coloring.

 Then they added some dishwashing liquid.

 When the dishwashing liquid was added, the colors shot out in a circular motion!

 They took turns stirring and blowing the liquid for more visual stimulation.

 

The second project involved a combination of water, vinegar, and salt to clean pennies coated with copper oxide (which makes pennies look dull). Apparently, this combination removes copper oxide, making the pennies look new again.

The penny on the left was not cleaned, the penny on the right was.

Then the kids tried to make elephant toothpaste which ended up not working out since we forgot one of the ingredients.

Cait's reaction to the smell of yeast.

We will be trying this project again sometimes later next week. The kids really want to see it foam up!