Scholastic
Scholastic: Science Explorations: Uncover Lizards and Snakes
An exploration of squamates, or scaled reptiles. Take notes about lizards and snakes using the pdf "Squamate Chart" while viewing a slideshow, investigate the squamate anatomy and how squamates differ from other animals, such as insects...
Regents of the University of Michigan
Animal Diversity Web: Family Iguanidae (Iguanas)
Resource gives the physical and behavioral characteristics of the iguana, its habitat, food habits, and the ability to live with man.
CK-12 Foundation
Ck 12: Life Science: Lizards and Snakes
[Free Registration/Login may be required to access all resource tools.] Lizards and snakes belong to the largest order of reptiles, Squamata. Lizards are a large group of reptiles, with nearly 5,000 species, living on every continent...
San Diego Zoo Global
San Diego Zoo: Lizard
This resource provides extensive information about lizards, including photos and an audio clip.