To prepare for a family science camp, I purchased Smithsonian Maker Lab and Smithsonian Maker Lab Outdoors.
Yesterday, Clare and Anne wanted to do a science project. Clare and I had decided on making a rain gauge from the Maker Lab Outdoors book, but Anne wanted to do an experiment I had done with her during the school year which demonstrates how yeast works. You simply put warm water in a 2-liter bottle and then add a package of yeast to the water and swish it around. Next, you add a tablespoon of sugar (to feed the yeast). Finally, you put a balloon over the top of the bottle. It takes a little time (20 to 30 minutes), but eventually the balloon will begin to expand. We found the directions for this experiment on Science Bob.
Meg, Clare and Anne all worked very hard to create beautiful pieces of art. Anne kept making something and then squashing it to start over again. When she finally decided she was finished, her clay looked like the big ball of clay that I handed to her at the beginning. Oh well. She still had fun with the art part and she can still watch her clay dry. As you can see from the pictures below, this is a bit of a messy project.