Science: Life Cycle of a Frog
How frogs grow and change
Science: Life Cycle of a Frog
How frogs grow and change
Science - Grade 2-3
- 1
Put these frog life cycle stages in the correct order: adult frog, egg, froglet, tadpole.
Start with the stage that is laid in water.
The correct order is egg, tadpole, froglet, adult frog. - 2
Where do most frogs lay their eggs?
Most frogs lay their eggs in water, such as a pond or wet area. - 3
What hatches from a frog egg?
This young animal looks more like a fish than a frog.
A tadpole hatches from a frog egg. - 4
Describe one way a tadpole is different from an adult frog.
A tadpole has a tail and lives in water, while an adult frog has legs and can live on land and in water. - 5
A tadpole grows back legs first and then front legs. What stage comes after the tadpole stage?
This stage looks like a small frog, but it may still have a tail.
The froglet stage comes after the tadpole stage. - 6
What happens to a froglet's tail as it grows into an adult frog?
A froglet's tail gets smaller and is absorbed as it becomes an adult frog. - 7
Circle the stage that has gills: tadpole or adult frog. Explain your answer.
Think about which stage spends all its time in the water.
The tadpole has gills because it lives in water and uses gills to breathe when it is young. - 8
Why are frog eggs usually found in jelly-like clumps?
The jelly-like clumps help protect the frog eggs and keep them together in the water. - 9
Fill in the blank: A frog changes a lot as it grows. This kind of change is called ________.
The word means a big change in body form as an animal grows.
This kind of change is called metamorphosis. - 10
Name two body parts that grow on a tadpole as it becomes a froglet.
A tadpole grows back legs and front legs as it becomes a froglet. - 11
Look at a pond habitat. Name one thing a frog needs from the pond to survive.
Think about what animals need to live and grow.
A frog may need water, food, shelter, or a safe place to lay eggs from the pond. - 12
True or false: An adult frog looks exactly the same as a tadpole. Explain your answer.
This statement is false because an adult frog has legs and no tail, while a tadpole has a tail and no legs at first. - 13
Draw or describe the adult frog stage.
Include the body parts that make it different from a tadpole.
An adult frog has four legs, no tail, eyes on its head, and can hop. It can live in water and on land. - 14
Why is water important at the beginning of a frog's life cycle?
Water is important because frog eggs are laid in water and tadpoles live and grow there. - 15
Complete this sentence: The life cycle repeats when an adult frog ________.
Think about how the cycle starts again.
The life cycle repeats when an adult frog lays eggs.