The Life Cycle of a Frog

By Sarah Hollingsworth

Arkansas Science Standards

7-LS2-2 Construct an explanation that predicts patterns of interactions among organisms across multiple
ecosystems. [Clarification Statement: Emphasis is on predicting consistent patterns of interactions in different
ecosystems in terms of the relationships among and between organisms and abiotic components of ecosystems.
Examples of types of interactions could include competitive, predatory, and mutually beneficial.]
7-LS2-5 Evaluate competing design solutions for maintaining biodiversity and ecosystem services.* [Clarification
Statement: Examples of ecosystem services could include water purification, nutrient recycling, or prevention of
soil erosion. Examples of design solution constraints could include scientific, economic, and social
considerations.]

The life cycle of the frog is an amazing process. In this book you will learn about the different stages a frog goes through from egg to adult frog.

Stage 1: Egg

Frogs often lay their eggs in ponds and other gently flowing bodies of water.  The eggs remain in the water until hatched a few weeks later.

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Stage 2: Tadpole            

In about 2 to 3 weeks frogs hatch into tadpoles and eat the remaining egg yolk from the egg that they hatched out of. Tadpoles are not able to go on land yet so they swim around in the water and eat algae, moss, and duckweed. Tadpoles are herbivores for the first 6 weeks of their lives.

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Stage 3: Froglet

At 6 to 9 weeks of age tadpoles begin to grow back legs, front legs, and its head begins to widen to look more like that of an adult frog. At this stage a tadpole is sometimes referred to as a froglet.

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Stage 4:  Adult Frog

3 to 4 months after hatching from the egg the froglet’s tail starts to disappear and the froglet grows into an adult frog and emerges from the water and begins to eat bugs as part of its daily diet.

Vocabulary


Froglet- young frog

Metamorphosis- the change that a frog goes through from egg to adult

frogspawn- groups of frog eggs

Comprehension Questions

Where do frogs lay their eggs?

What types of food do frogs eat as they grow?

What is a frog called in its third stage of its life cycle?