Life Cycle of the Frog

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Life Cycle of the Frog

• By Jackie
• Grade 2
• Boundary Street Elementary

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What are the stages of growth for the frog?

• Egg
• Tadpole
• Young adult
• Frog

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Stage OneEggs

• The adult female lays eggs in the water.
• The eggs are small and are protected by a thick,
  clear, jelly-like substance.
• The eggs are laid in clusters.

Pictures from How Do Frogs Grow? Judy
Nayer Newbridge Discovery Links
4
Stage TwoTadpoles

• Tadpoles hatch from the eggs.
• Tadpoles live in water and eat water plants.
• Tadpoles store fat in their tails.
• They breath with gills.
• Tadpoles begin to grow hind legs.

Pictures from How Do Frogs Grow? Judy
Nayer Newbridge Discovery Links
5
Stage ThreeYoung Adult

• The tadpoles tail becomes shorter as the hind
  legs grow longer.
• Front legs begin to appear.
• Lungs form and gills begin to disappear.
• When the tail is almost gone, the tadpole has
  become a frog.

Pictures from How Do Frogs Grow? Judy
Nayer Newbridge Discovery Links
6
Stage FourAdult Frog

• The adult frog lives on land.
• It breathes through lungs.
• Its tail has completely disappeared.
• The adult frog eats insects.

Pictures from How Do Frogs Grow? Judy
Nayer Newbridge Discovery Links
7
Frog Facts

• Frogs belong to the amphibian animal group.
• They are able to live in most any environment,
  except in Antarctica and the driest deserts.
• The most common environments are moist, tropical
  areas.
• Frogs have smooth, moist skin bulging eyes and
  eternal eardrums.
• Long hind legs help frogs make long leaps.
• Webbed feet also help frogs to become excellent
  swimmers.
• A frogs tongue is attached at the front of the
  mouth and is covered with a sticky substance.

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Frog Facts

• They have teeth in the upper jaw, but not in the
  lower.
• Frogs breathe air, but are able to stay under
  water for long periods of time. They can also
  breathe through their skin.
• Frogs like to eat insects, worms, and centipedes.
  Some frogs also eat other frogs, tadpoles small
  fish, mice and small snakes.
• The largest frog in North America is the
  bullfrog. It can be 18 inches long and weigh 1.2
  pounds.
• The largest frog in the world is the African
  Giant frog. It can be 26 inches long and weigh
  10 pounds.
• Frogs help people by eating pesky insects. They
  are also used for food and research in labs.

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Resources

• Microsoft Encarta Encyclopedia 99
• Carson Delosa Life Cycle of the Frog poster
• www.webshots.com
• ???Book