A boy washing the dishes wonders where the water goes, and the story follows water drops as they travel to through the city sewer system, treatment plant, and back again.
Two children try to create a mudslide on a playground and then learn about the dangers of real mudslides, as well as how wind, water, and ice erosion can shape the land.
"A boy watching a garbage truck pick up his trash wonders where it goes, and the story follows two garbage bags as they travel to a transfer station and then to a landfill"--
A young boy and his friends dig in their sandbox and pretend to be real paleontologists digging up dinosaur bones, showing what its like to be a professional paleontologist.