For this project, grab yourself a $1 bag of party balloons. Find some small objects i.e. coins, pom poms, mini Thomas trains. You can also use some food coloring as well. Find a helper, stretch your balloon out and fill it with the objects. You can then add about 5-10 drops of coloring, if you are using it. Then fill the balloon with water to the size of a softball and tie it off. Feel free to make one several at a time and put them in a plastic bag in your freezer.
Twelve hours later, you will have ice balloons. have a child trim the tied off section on the balloon with scissors and peel the balloon away. Before demolition, we painted on our balloon with some water colors and old markers. Now you will need to figure out how you will get the treasures out. We used an eye dropper and a cup of warm water, a spray bottle filled with warm water, a fork, a toy screw driver and the concrete.
Part of the fun is testing and talking about how effective the methods are. We also took this opportunity to introduce a new word: friction. In this case, it was the lack of friction that caused an issue. My son had to problem solve how to stop the ice from sliding around as he worked toward the treasure retrieval
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