by Marie Faust Evitt
Mountain View Parent Nursery School
Mountain View, California.
Silkworms provide an easy way for children to see a complete life cycle in about 10 weeks. The preschool where I teach raises silkworms every spring.
About a month after hatching the silkworms are ready to spin cocoons.
After three weeks in their cocoons, the silk moth emerge. They can't fly and they don't eat or drink. They live for about three to five days during which time they mate.
They mate for about a day.
The female then lays eggs and the male looks for another mate. We let the eggs sit for a few days then put them in a sealed plastic bag in the refrigerator and save them until the following spring.
Check this site for details about raising silkworms and links for buying eggs and artificial food.