Requirements Students Elementary Grades 3 rd and 4 th Middle Class Science class that is learning about butterflies Environment Work individually or in pairs Needs a computer with sound capabilities Internet and Microsoft PowerPoint ID: 791327
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Slide1
Life Cycle 0f a Butterfly
Slide2Requirements
Students:
-Elementary Grades 3
rd
and 4th -Middle Class-Science class that is learning about butterfliesEnvironment:-Work individually or in pairs-Needs a computer with sound capabilities, Internet, and Microsoft PowerPoint
Slide3Objectives
-Given a picture, the students will be able to recognize what stage the butterfly is in with 100% accuracy.
-Given a picture of the butterfly life cycle chart, children will be able to identify the cycles from start to end with 100% accuracy.
-Given the name of a cycle, children will be able to describe it with 100% accuracy.
Slide4Hi! I’m Barry the butterfly and today I’m going to teach you about the cycles of my life!
Let’s go!
Slide5Here are some instructions on how to navigate through this program!
If you click on this butterfly it will take you to the next screen!
If you click on this butterfly it will take you to the last screen!
__________
The definitions of the underlined words can be found under the vocabulary tab!
If you click this button it will take you to the home screen!
Slide6Click on each Picture to Explore Each Cycle!
1. Egg
2. Caterpillar
3. Pupa
4. Adult
Quiz
!
Vocabulary
!
Video
!
Click on the Quiz after you review each section!
Slide7Eggs
This
stage happened before I was born!
Lime Butterfly Egg
Slide8Eggs
Owl Butterfly Eggs
What are they made of?
The eggs are protected by a hard-ridged outer layer of the shell, called
chorion.
A thin layer of wax coats this. This prevents the egg from drying out.
Each egg contains a number of tiny funnel-shaped openings at one end called
microplyes.
Slide9Eggs
Monarch Butterfly Egg
Where can you find the eggs?
Butterflies lay their eggs on plants.
Each species of butterfly has its own host plant.
Some are restricted to one plant, while others use a variety of different plants.
Slide10Eggs
When are they laid?
The egg stage lasts a few weeks!
If the eggs are laid close to winter the go through a
diapause (resting) stage and hatching may take place only in the Spring.Others lay their eggs in the Spring and they hatch in the Summer!
Slide11Quick Review of the egg stage!
True or false?
The eggs are protected by a hard outer shell.
Slide12Correct!
Awesome Job!
The answer is TRUE!
The hard outer shell is called the CHORION
!Get ready for the next stage!
Slide13Incorrect
Remember, the egg needs some kind of protection so it does not get damaged!
Slide14Caterpillars
This stage happened after my egg hatched!
Swallowtail Caterpillar
Slide15Caterpillars
Butterfly larvae, or
caterpillars
, consume plant leaves and spend most of their time searching for food.
Some larvae communicate with ants using vibrations!
Slide16Caterpillars
Caterpillars mature in stages called instars.
Cuticles
,
which are a tough, but flexible covering, form during the instars stages.At the end of each instar, the larva molts the old cuticle.
Development of the wing patterns begins by the last larval instar.
Norape
Caterpillar
Slide17Caterpillars
Structure:
Caterpillars have 3 pairs of true legs and up to 6 pairs of
prolegs
! Prolegs are used for grips!Some caterpillars can inflate parts of their head to appear snake-like!
Some have special structures called
osmeteria
which produce smelly chemicals for defense!
Slide18Quick review of the caterpillar stage!
True or False?
Some caterpillars release a smelly chemical for defense.
Slide19Correct!
Good Job!
The answer is TRUE!
The special structures that release the chemical are called osmeteria!Get ready for the next stage!
Slide20Incorrect!
Try to think back to how caterpillars protect themselves!
Slide21Pupa
In this stage I form a cocoon to begin my transformation into a butterfly!
Euptoieta
Claudia Pupa
Slide22Pupa
How does the caterpillar become a pupa?
The larva transforms into a pupa, or
chrysalis
by anchoring itself to a surface and molting for the last time.Danaus Plexippus
Slide23Pupa
The
pupal
transformation into a butterfly is through
metamorphosis.The pupal wings undergo rapid mitosis.
Slide24Quick review of the Pupa stage!
True or False?
The
pupal
transformation does not go through metamorphosis.
Slide25Correct!
Great Job!
The answer is FALSE!
The
pupal transformation does undergo metamorphosis!Get ready for the next stage!
Slide26Incorrect!
Try to think about the
pupal
transformation again.
Slide27Adult Butterfly
This is the final stage of my life! I’m finally an adult!
Blue
Morpho
Butterfly
Slide28Adult Butterfly
The adult, sexually mature, stage of the insect is known as the
imago.
Butterflies had four wings that are covered in tiny scales!
Slide29Adult Butterfly
An adult butterfly has six legs.
A butterfly can’t fly until its wings
are unfolded.
They need to spend time inflating their wings with blood and letting them dry.This process can take up to 3 hours!
Slide30Quick review of the adult butterfly stage!
True or False?
A butterfly can fly as soon as it emerges from its cocoon.
Slide31Correct!
Awesome Job!
The answer is FALSE!
It may take up to 3 hours for the butterfly to be able to fly!Get ready for some vocabulary!
Slide32Incorrect!
Remember, butterflies need time for blood to circulate to their wings!
Slide33Vocabulary!
Chorion-
the hard outer layer that protects the egg.
Microplyes
- funnel-shaped openings at the end of an egg.Host plant- a plant that harbors the egg.Diapause- resting state of the egg during the winter.Caterpillars- the larval form of butterflies or moths.Cuticle- tough, but flexible, non-mineral outer covering of an organism.Molts- shedsProlegs- small fleshy, stub structure used for grip.Osmeteria- a fleshy organ that emits a smelly chemical for defense.Chrysalis- pupal
stageMetamorphosis- process by which an animal physically develops after birth or hatching, involving abrupt change in the animals body structure.
Imago-
last stage of development.
Ready for the quiz?
Review video first?
Home to review the cycles?
Slide34Here’s a fun story that talks about a caterpillar who is trying to find out how she will become a butterfly!
Click here for the QUIZ!
Slide35Quiz Time!
Now it’s time to review what we’ve learned!
Slide36What stage is B?
A.
Pupa
B.
AdultC. EggD. Caterpillar
Slide37Great Job!
Did you know that caterpillars outgrow their skin several times!
Answer: D. Caterpillar
Slide38Not quite...
Remember, the second stage of the life cycle starts with a C…
Slide39What is the hard outer layer of the egg called?
A.
Chorion
B.
MicroplyesC. DiapauseD. Shell
Slide40Yes!
Answer: A. Chorion
Did you know that the chorion contains 2 layers? The
trophoblast
and the mesoderm.
Slide41Think again...
Remember, the name of the shell may start with the letter C
.
Slide42The resting stage of an egg during the winter is called diapause.
A.
True
B.
False
Slide43Awesome!
Answer: True
Did you know this happens especially in temperate regions!
Slide44Oops!
Slide45What stage is this?
A.
Adult
Butterfly
B. PupaC. EggD. Caterpillar
Slide46Wow!
Answer: B. Pupa
Did you know that the pupa becomes increasingly transparent as it progresses!
Slide47Think again...
Think about what stage the cocoon is in..
Slide48What other insect do caterpillars communicate with?
A.
Worms
B.
SpidersC. AntsD. Beetles
Slide49Great!
Answer: C. Ants
Did you know that the ants provide some protection to these larvae!
Slide50Oops!
Remember they communicate through vibrations!
Slide51How many legs does an adult butterfly have?
A.
Four
B.
SixC. FiveD. Eight
Slide52Good Job!
Answer: B. Six
Did you know that in the
nymphalids
, the first pair of legs is reduced!
Slide53Not quite...
Remember, butterflies have a set number of legs..
Slide54The small fleshy stub structure used for grip is the:
A.
Diapause
B.
ProlegsC. ChrysalisD. Cuticle
Slide55Awesome!
Answer: B. Prolegs
Did you know that
prolegs
are also called false legs!
Slide56Think again...
Think about the structures that caterpillars have by their legs.
Slide57What is another word for the last stage of the butterfly life cycle?
A.
imago
B.
microplyesC. chorionD. osmeteria
Slide58Way to go!
Answer: A. imago
Did you know that butterflies go through hibernation!
Slide59Oops, try again
Hint: The alternative word for adult butterfly is similar to the word image!
Slide60Thanks for going on this learning adventure with me! You did great! Hope to see you soon!