Life Cycle of the Frog By Jackie Grade
Life Cycle of the Frog By Jackie Grade 2 Boundary Street Elementary
What are the stages of growth for the frog? • Egg • Tadpole • Young adult • Frog
Stage One Eggs • 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
Stage Two Tadpoles • 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
Stage Three Young Adult • The tadpole’s 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
Stage Four Adult 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
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 frog’s tongue is attached at the front of the mouth and is covered with a sticky substance.
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.
Resources • • Microsoft Encarta Encyclopedia 99 Carson Delosa Life Cycle of the Frog poster www. webshots. com ? ? ? Book
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