Life Cycle of a Frog - PowerPoint PPT Presentation

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Life Cycle of a Frog

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... the changes that take place as tadpoles change into frogs. ... Life Cycle of a Frog: 60-84 Days Old. The tadpole now ... Adult frogs breathe air through ... – PowerPoint PPT presentation

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Title: Life Cycle of a Frog


1
Life Cycle of a Frog
  • Write On
  • Grade 3 - 4

2
Learner Expectation
  • Content Standard 4.0 Heredity and Reproduction
  • The student will understand the basic principles
    of inheritance.
  • Learning Expectations
  • 4.1 Recognize that living things reproduce.
  • 4.2 Recognize that offspring tend to resemble
    their parents.
  • 4.3 Recognize that the appearance of plants and
    animals changes as they mature

3
In this activity you will
  • Learn about the life cycle of a frog.
  • Learn about the changes that take place as
    tadpoles change into frogs.

4
Life Cycle of a Frog First Week
  • A female frog lays 5,000 to 6,000 eggs in water.
  • Each egg is only 1.5 mm in diameter.
  • When the eggs are 6 days old you can see the tiny
    tadpoles inside of the eggs.

5
Life Cycle of a Frog 6-9 Days Old
  • The tadpoles come out of their eggs.
  • They are now 8 mm long.
  • They are adapted to living in water.
  • They take in oxygen from the water through their
    gills.
  • They have long tails to help them move through
    the water to hunt for food.

6
Life Cycle of a Frog 60-84 Days Old
  • The tadpole now has back legs. It uses its legs
    and tail to move around in the water.
  • Its legs will help it move around on land.
  • It begins looking more like a frog.
  • The last thing to disappear is the tadpoles
    tail.
  • It gets smaller and smaller until it is gone.

7
Life Cycle of a Frog Adult Frog
  • An adult frog doesnt look anything like its old
    tadpole self.
  • Adult frogs breathe air through lungs-not gills.
  • They spend most of their time on land-not in
    water.
  • They can jump on land and swim in water.

8
The Life Cycle of a Frog Writing Activity
  • Create a Four Square writing paper.
  • Write a topic sentence that is appropriate for
    the lesson about what you have learned about the
    Life Cycle of a Frog.
  • Write one detail in each square.
  • Self edit and then exchange with a friend for
    peer editing.
  • Take it to paper.
  • Draw a picture of an egg, a tadpole, and an adult
    frog.
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