The Stages of MetamorphosisFrom Egg to Frog

Subject: ScienceGrade: 2nd Grade

By, Sandra L. Levingston

The Life Cycle of a Frog

• The Life Cycle of a frog begins with five stages Of Metamorphosis.

1. The Egg (surrounded by a clear layer that absorbs in water and as time goes by thickens protecting the yoke of the egg).

Life Cycle of a Frog

The Metamorphosis of a Frog

• The egg begins to hatch in 4-5 days.• The larvae emerges forming into a Tadpole.• Tadpoles have jaws that allow, gills, and tiny

eyes that grows larger as the tadpole enlarges.• Parts of a Tadpole:1. Eye2. Muscular tail3. Spout

Life Cycle of a Frog

• Parts of a Tadpole

Life Cycle of a Frog

• The Tadpole slowly begins to change into an Adult Tadpole after 5 weeks and begins to have even more frog like characteristics.

• Forming hind legs• Horny lips • “Elbows” begin to sprout out.• The tails becomes smaller.• And the lungs becomes almost fully developed;

preparing the frog to live on land or water.

Life Cycle of a Frog

• Fun Facts: Frogs live on every continent except Antarctica.

• Frogs are Amphibians. (Cold-blooded animals)

Life Cycle of a Frog

• The next stage is a Froglet.• The adult tadpoles legs are even stronger.• The tail becomes much shorter.• The lungs are almost fully functioning.• The frogs mouth widens.• The frog looses its jaws and after 11 full weeksThe froglet becomes an adult frog.

Life Cycle of a Frog

– Adult Frog

Life Cycle of a Frog

• The Circle of Life

Life Cycle of a Frog

• Different Type of Frog Species.

Life Cycle of a Frog

• Sources Consulted • http://youtube.com/watch?v=u10V• www.teachkunkie.com• www.kidszone.com• www.homeschoolhelper.com