Download Metamorphosis - Science with Ms. Ras

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Metamorphosis refers to the way that certain
organisms develop, grow and change form.
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Metamorphosis means “change.”
 Incomplete
STAGES
 Complete
STAGES
Metamorphosis- 3
Metamorphosis- 4 or 5
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Egg
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Larva
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Pupa
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Adult
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Female lays eggs.
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Larva hatch from the eggs. They do not look
like adult insects. They usually have a wormlike shape.
Caterpillars, maggots and grubs are all just
the larval stages of insects. Larvae molt their
skin several times and they grow slightly
larger.
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Larva make cocoons around themselves.
Larva don’t eat while they’re inside their
cocoons.
Their bodies develop into an adult shape with
wings, legs, internal organs
This change takes anywhere from 4 days to
many months.

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Inside the cocoon larvae change into adults.
The adult will break out of the cocoon.
 Egg
 Nymph
 Adult

A female insect lays eggs.

These eggs are often covered by a case which
protects the eggs and holds them together.
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Eggs hatch into nymphs.
Nymphs are similar to the adult but do not
have wings.
Nymphs eat the same food as the adult
grasshopper.
Nymphs shed or molt their exoskeletons
(outer casing). They are replaced with larger
ones as they grow.

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Insects stop molting when they reach their
adult size.
They grow wings.
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Frogs undergo a complete metamorphosis as
well. (5 stages)
Egg
Tadpole: lives in the water, breathes with
gills, and has a tail.
Tadpole with legs
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Froglet: As the tadpole grows, lungs and legs
form, and the gills and tail are absorbed into
the body.
Adult Frog: animal leaves the water and lives
mainly on land, as a frog.