Exploratorium
Exploratorium: Frogs
The Exploratorium museum in San Francisco provides this exhibit companion site that features information about frogs including their habitats, characteristics, calls, and much more. Instructions are included for making a rain stick.
CK-12 Foundation
Ck 12: Life Science: Frogs and Toads
[Free Registration/Login may be required to access all resource tools.] Frogs and toads are amphibians in the order Anura. In terms of classification, there is actually not a big difference between frogs and toads. Learn more about frogs...