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Designing Effective Projects: Pond Water and Pollywogs
From Egg to Elder: The Frog Life Cycle

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Frog Life Cycle Diagram Puzzle

Cut out the pieces and mix them up. Then match the labels with the pictures and put them in the correct order.

egg

tadpole

tadpole2

froglet

adultfrog

Stage 1—Egg
Tiny frog eggs are laid in masses in the water by a female frog. The eggs hatch into tadpoles.
Stage 2—Tadpole
Tadpoles are also called
pollywogs. This stage hatches from the egg. The tadpole spends its time swimming in the water, eating, and growing. Tadpoles breathe using gills, and they have tails.
Stage 3—Tadpole with Legs
In this stage, the tadpole sprouts legs (and then arms), has a longer body, and has a more distinct head. It still breathes using gills and has a tail.
Stage 4—Froglet
In this stage, the almost
mature frog breathes with lungs and still has some of its tail.
Stage 5—Adult Frog
The adult frog breathes with lungs and has no tail because it has been absorbed by the body.

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