Make a Wormery
suggested grade levels: 3-6
view Idaho achievement standards for this lesson
|old aquarium or large glass jar||soil||decaying leaves|
|sand||cornmeal||black construction paper|
Fill an old aquarium with alternate layers of garden soil, leaf mold (decaying leaves), and sand. Sprinkle each layer with a little water. On top of the last layer place small pieces of leafy vegetable and a handful of cornmeal. Dig up several earthworms from the backyard or off the sidewalk after an especially heavy rainfall. Transfer them to their new home. Cover the sides of the aquarium with dark paper for a week or two to encourage the worms to tunnel near the glass. As the earthworms consume the decayed vegetation they will keep turning the soil.
Biology: Biology Topics