The Envirobox Project involved a total of six classes (first- through fifth-grades) from around the United States sending each other a shoebox containing six to ten environmental samples. The boxes contained items such as pressed leaves and flowers, rocks, water samples, feathers, soil samples, pieces of bark, snake skins, acorns, pinecones, shells, lobster claws, and maple syrup. Once each class received their enviroboxes, the children began their investigations to identify the samples. Exchanging environmental samples from diverse regions of the United States proved to be the impetus for true inquiry amongst students.