Earth Life
Wonderful World of Insects: An Introduction to the 32 Orders of Insects
A very thorough look at the world of insects. This site examines the 32 orders of insects and gives a complete explanation of the characteristics of each order. Text is supplemented with pictures.
Other
Billy Bear4 Kids: Butterflies and Bugs
BillyBear4Kids.com is a great butterfly resource with links to butterfly cut-outs, flashcards, bookmarks, crafts, online games, and more. Scroll down for reproducibles.
Regents of the University of Michigan
Animal Diversity Web: Class Insecta
The Animal Diversity Web surveys the general characteristics of the insect class and features such topics as habitat, anatomy, body systems, reproduction, and development.
Ohio State University
Osu: Flea Fact Sheet
A fact sheet on fleas from the Ohio State University Extension lists scientific names, identifying characteristics, and pictures.