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.
Other
All About Frogs: Life Cycle of a Frog
Understand the reproduction and life cycle of a frog from mating through spawn, eggs, tadpoles, and growing legs to the final frog. Nice details.
Natural History Museum
Natural History Museum: Reptiles, Amphibians and Fishes
This online exhibit from the Natural History Museum branches out in many fields to cover the broad topics of reptiles, amphibians and fishes. Thirteen subtopics are provided including several videos and informative articles.
PBS
Pbs Teachers:costa Rica: Why So Many Frogs?
Explore the different stages in the growth of a frog, explain why organisms produce large numbers of young and determine the survival rate of a population of tadpoles under controlled conditions.
Other
Center for Global Environmental Education: A Thousand Friends of Frogs
An in-depth site about the world of frogs. The site includes teacher, student, science, and research sections. There are plenty of facts and activities.
Other
The Somewhat Amusing World of Frogs
Find out what you don't know about frogs, frogs vs. toads, frog size, sight, environment, legs, mouth, food, color, defense, tadpoles, and more.
Read Works
Read Works: The Life Cycle of a Frog
[Free Registration/Login Required] An informational text about the steps in a frog's life cycle. A question sheet is available to help students build skills in reading comprehension.
PBS
Pbs Nature: Frogs and Toads
Do you know how to tell the difference between a frog and a toad? This site provides interesting facts and information about this type of amphibian from where they live to what they eat and more.
Alabama Learning Exchange
Alex: Leap Into the Life Cycle of a Frog
During this lesson plan students explore the life cycle of a frog. They will raise frogs in the classroom from tadpoles and document and describe each stage of the life cycle.
University of Guelph
Canada's Aquatic Environments: Reproduction
A three-page introduction to reproduction in amphibians can be found at this site. Read about the various methods of reproduction, and what happens after the eggs are laid. There is also a section that shows the growth/development stages...
Ducksters
Ducksters: American Bullfrog
Kids learn about the American Bullfrog, large amphibians and frogs that can jump high.