My older and wiser cousins would advise me how to effectively kill the earthworms. They would tell me that I must strike the circular ring in the upper region of the worm. Destroying the hearts will prevent the worm from regenerating, they said. Although we were at a very young age then, we seemed to be adept murders of earthworms. Now, at a more mature age, I formed a group to investigate the effect that earthworms have on the development of roots in plants.
Earthworms sift through earth and dead leaves and extract pieces of food.
When the earthworms go to the surface to expel their waste, to eat, or to mate, these channels become connected with the surface. Earthworms thus cause the penetration of air into the soil. This experiment would determine whether the penetration of air into the soil will increase the development of roots in plants. Materials and Method. This experiment was simultaneously conducted twice to minimize errors.