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 it’s 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 tadpole’s tail. • It gets smaller and smaller until it is gone.

7. Life Cycle of a Frog: Adult Frog • An adult frog doesn’t 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.