The book Eensy Weensy Spider, by Mary Ann Hoberman, follows the famous nursery rhyme where the spider goes up the waterspout, and the rain washes him out and he tries again.

Spiders are different from insects. All spiders are predators and mostly eat insects, but some are big enough to capture and eat small birds or mammals. Unlike insects, which have 6 legs, spiders have 8. Spiders are also special in the fact that they have web-spinning structures on their abdomens, called spinnerets. They use the silk to make webs to help catch food and sometimes to wrap it up to eat later.

Information from:
Berenbaum, May R. Bugs in the System. Addison-Wesley Publishing Company, 1995