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Life Cycle of a Frog

Standard 1.3 Organisms change in form and behavior as part of their life cycles.
  • 1.3.5 Some animals change dramatically in structure and function during their life cycle in a process called metamorphosis.
  • 1.3.6 Frogs are amphibians that undergo metamorphosis during their life cycle. As they grow, frogs develop different structures that help them meet their basic needs in water and then on land.
a. Tadpoles hatch from eggs, live in water, breathe using gills, and swim using a tail. As they metamorphose into frogs, tadpoles lose their gills and their tails.
b. Adult frogs live on land and in water. They breathe air using lungs and develop webbed feet and hinged legs for swimming in water and hopping on land. After a female frog mates, she lays her eggs, and the cycle begins again.

Frogs are amphibians that usually lay their eggs in the water. Tadpoles hatch from the eggs and use their gills to breathe in the water. The tadpole develops back legs, then front legs. The tadpole becomes a froglet and develops lungs. The froglet moves to land and begins to lose its tail. The frog eventually absorbs its tail and becomes a mature adult frog.

Here is a great lesson plan to use in the Spring.