Metamorphosis

By Wendy & Katie

June 11, 1997



June 11, 1997


 Metamorphosis




 Todays lesson will help Katie identify the stages
in the development of
 a butterfly. We will reinforce the concept that all
living things have basic
 needs that must be met in order to survive; and
that all living things grow
 and change. We will be comparing the growth
and development of a butterfly
 with our own growth and development.


 Today I started the lesson with a series of
pictures clipped from a magazine
 and family photographs. After allowing Katie
to view the photo's, we had a
 question and answer discussion. For example
while showing Katie photo's of 2
 infant's I asked if it looked like the babies were
about the same age. Then I
 added 2 additional photograph's, (photo's of the
same 2 babies as young ),
 children and again, asked the same question. I
proceeded by removing 2 of the
 pictures from this group, (1 of the baby and 1
of a young child); again I
 repeated the question.
 In another series of pictures; (4 people in various
age groups...infant, child,
 adult, and senior citizen), I asked her to tell me if it
looked like all of the
 people looked like they were the same age, or if
they looked different. We then
 went through the pictures and discussed the
differences from person to person as
 they age. These are some of the things that we
learned:


 *There are different kinds of people in the world.
Some people are old, some
 are babies and some are just
people like you and me.

 *People change as they grow; a baby
does not look like a big person.

 *You have to take care of babies and
yourself to grow up big. People need
 certain things to live.

 *People need things to help them grow up.

 ---Katie


 We turned our attention to insects. I gave Katie
some hand-outs of "Egg to
 Butterfly" coloring pages. I explained that just like
us insects go through
 dramatic changes as they go through their
"life cycles." That means living
 things change during their lifetimes. The we
learned a big new word
 "metamorphosis."
 As Katie looked at her coloring pages I
asked her if all the pictures looked
 the same. For fun I asked her to guess
what order the stages were suppose to go
 in and to arrange those stages in that order.
When she was done we went through
 the order of the stages, and what each stage
was and what happened in each.
 We have already learned that there are 4
stages in the development of a
 butterfly. I also used library books to show
her pictures of the various stages
 of growth. We have put the 4 stages of
metamorphosis here for you to see. We
 have tried to explain what happens in each
of these stages.





 "4 Stages of Metamorphosis in a Butterfly"


 Stage 1.......Egg
 Stage 2.......Larva (or caterpillar)
 Stage 3.......Chrysalis (or pupa)
 Stage 4.......Butterfly (or adult)



 ---Katie



 We looked at our coloring pages again and
then we matched the pictures with
 the correct stages. Then we went through
each of the stages individually and
 learned as many different things about
each one as we could.
 you to see.





 Stages of Metamorphosis in Butterflies


 A. Egg Stage

 1. The life of a moth or butterfly starts with an egg.
 2. The egg is tiny, round, oval, or cylinder shaped.
 3. Egg's come in all shapes and sizes. Sometimes
they are laid singly,
 and sometimes they are laid in groups. The
Monarch, for example,
 lays a single egg, usually on the underside
of a plant leaf.
 4. Egg's are always laid on, or near it's
food source.
 5. Some egg's are laid when the butterfly
or moth is flying.


 B. Larva/Caterpillar Stage

 Larva, or caterpillars as they are often called,
are the long, worm-like
 stage of a butterfly or moth.


 1. Caterpillar's have many different colors and
patterns, and sometimes
 hairs and spines on their bodies.
 2. Caterpillar's are in the "eating & growing"
stage of becoming a but-
 terfly . As it grows it will shed it's skin several times
so that it
 can keep it's body covered.
 3. This is the stage a butterfly is in before it
makes it's cocoon or
 chrysalis.



 C. Chrysalis/Pupa Stage


 1. This is also known as the "resting" stage.
 2. This is the stage where the final
transformation to a butterfly takes
 place.

 a. During this stage caterpillar's spin a silk
mat or button of silk
 on a surface where they are going to change
to a chrysalis.
 b. The caterpillar then hangs upside down
from it's prolegs from this
 silken mat.
 c. The larva then swells and begins to change color.
 d. The old skin begins to split behind the head, and
eventually falls
 off. What remains is the pupa. The pupa is very
soft and delicate
 until it hardens. This hardened shell protects the
butterfly as it
 is making it's final changes.
 e. Inside the pupa/chrysalis many changes are
taking place to turn the
 caterpillar into a butterfly.

 1. The muscles break down into mush.
 2. Leg's and wings appear.
 3. Compound eyes and antennae appear.

 **Katie was reminded that caterpillar's turn
into moth's or butterflies. A
 caterpillar that spins a cocoon, (silk around itself),
will turn into a moth. A
 caterpillar that spins silk and then attaches itself
to the silk and hangs upside
 down and turns into a chrysalis, will turn
into a butterfly.



 D. Adult


 1. This is the final and resulting stage of
metamorphosis; the adult
 butterfly or moth. All growing and changing
is done.
 2. This is where the cocoon or chrysalide
will hatch and a butterfly
 or moth will be there.




 ARE NEW BUTTERFLIES DIFFERENT?


 Now that we have talked about metamorphosis
and what happens as an egg grows to
 a butterfly, we are going to take a look at
what a new butterfly is like. We
 wanted to know if they could fly right away.

 We have read in our books that butterflies wings
are wet and crumpled when they
 hatch from their chrysalides. They have to "pump"
them up and let them dry before
 they can fly. A moth dries their wings by laying
they flat out. A butterfly will
 let itself hang downward to dry it's wings; as you
can see by some of the pictures
 here. . It can take an hour to many hours for
wings to dry. Until then a
 butterfly can not fly. A butterfly has to "pump up",
warm up and get energy, and
 let those wings dry before he can go anywhere.

 An adult butterfly doesn't live very long...about
a month. Their job while they
 are alive is to find other butteflies like them
and to make more butterflies. The
 butterflies that you see at the beginning of
summer are not the same ones you will
 you will see at the end of the season. There
are many "generations" of butteflies
 that we see in the sumertime.

 Nectar from flowers, (the sugar/water juices
in the flowers), give the butterflies
 their food. They use their probiscus to
drink the nectar. They use their eyes to
 find the flowers, and the hairs on the
bottom of their feet to find the nectar.

 We reviewed things one more time and
looked at many different pictures of butterflies
 and made more comparisons when we
were through. We concluded the lessons here.






Return to "Birds & Butterflies."