I decided to incorporate one of Graham and Parker's Christmas gifts into some of our routine outdoor play. I set up their pipe builders waterways from Lakeshore and then f\illed up some various bottles with vinegar and food coloring. I used a funnel to put some baking soda into some various bottles too. Then I let them go to town! It was really cool!! The bubbles that came up through the pipes looked so neat!! It was a big hit!! They loved it!
We ended up re-configuring the pipes a few times during play.