Thomas Edison said, "To invent, you need a good imagination and a pile of junk." With these words of wisdom in mind, we challenge you to create your own yo-yo using items found in your recycling bin.This activity from Spark!Lab includes suggested procedures and ideas for extending your learning.

Life on America's farms in the 1920s and 1930s meant hard work and frugal habits. Farm families were used to "making do" with what they had, wasting nothing that could be recycled or reused. With feed sacks and flour bags, farmwomen took thriftiness to new heights of creativity, transforming the