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discusses metamorphosis
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Grade 4
Where do butterflies come from?
Yeah, tell me
please!
Unlike you and me…
butterflies look different when they were babies!
Check this out!
Baby Adult
Amazing, right?
Butterflies are special because their form change
as they grow older.
this is called METAMORPHOSIS
Let’s read together…
metamorphosis
or change in form
a butterfly’s metamorphosis
Egg Larva
PupaAdult
Egg
First…
Larva
Next…
Pupa
Third…
Adult
Last…
Finally…
a butterfly!
Wow.Thanks for telling me!
Let’s review…
A butterfly changes in form
Egg Larva Pupa Adult
this is called METAMORPHOSIS
Well, that’s cool!
Ribbit. What
about me?
Where do frogs come from?
Frogs also change in form…
check out this cool dude!
a frog’s metamorphosis
Eggs Tadpole
FrogletAdult
Frog’s metamorphosis
First…
Eggs
Egg
•A frog lays many eggs at one time.
•The eggs are covered with a jellylike coating.
Second stage…
Tadpole
Tadpole
•Hatched tadpoles have gills for breathing in the water.
•They have a tail, but no legs.
Third…
Froglet
Froglet
•As a tadpole grows, lungs begin to form.
•Back and front legs begin to grow. These parts allow the adult frog to live on land.
Adult Frog
Adult Frog
•Once the lungs form and begin to work, the gills and tail disappear.
•The adult frog is now ready to live on land
Go for the
gold!
Sources
• http://www.tooter4kids.com/Frogs/life_cycle_of_frogs.htm
• http://ecs.lewisham.gov.uk/youthspace/ca/Lorraine/frog_life_cycle.htm