After a heavy
rain, I walked outside and saw some pinkish soft worms.
I was wondering where did they come from. Later when my
parents were digging in the back yard to plant a small
tree, I noticed that these worms are under ground.
Immediately I thought since worms live underground, they
possibly eat plant root and maybe that is what makes
some plants die. So I started to remove the worms and
throw them in the garbage can.
Recently in a television
program I saw someone who produces worms as her business. She
was actually selling the worms to gardeners because worms are
good for soil and plants.
I was totally confused by now,
so I decided to select this science project and find out how can
the worms be good for the soil and how can someone make money
from selling earth worms. I also want to know how we can
identify the sex of the worm and how we can identify adults from
children. Finally I plan to learn about the life-span and
reproduction rate of earthworms.