Life Cycles-Butterflies

Icebreaker:
What do you call an insect that's running out of gas? 
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Cette leçon contient 15 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.

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Icebreaker:
What do you call an insect that's running out of gas? 

Slide 1 - Diapositive

A sputter-by butterfly!

Slide 2 - Diapositive

Slide 3 - Vidéo

Let's Study Life Cycles Using Butterflies!
There are 4 stages in a butterfly life cycle.
1. Egg
2. Caterpillar
(larva)
3. Chrysalis (pupa)
4. Butterfly

Slide 4 - Diapositive

Stage 1: Egg
  • Butterfly Eggs come in many different shapes.
  • Most mother butterflies lay between 100-500 eggs.
  • They are usually laid on either leaves or branches and take about 4 days to hatch.
What are Stages? 
Stages are the steps of how something grows. 

Slide 5 - Diapositive

Stage 2. Caterpillar (Larva) 
  • The caterpillar bites a hole in its egg and crawls out.
  •  It eats many leaves and keeps growing bigger. 
  • As it does, it sheds its skin like a snake 4-5 times.
  •  This stage usually lasts 7-10 days.

This is a Monarch Caterpillar.

Slide 6 - Diapositive

Stage 3. Chrysalis (pupa)
  • The caterpillars form a chrysalis (a type of hard shell) by hanging upside down and shedding their skin one last time. Inside, they are changing very quickly. 
  • This stage will last 10-14 days.
  •  Butterflies go through a complete metamorphosis (major changes to their body in 4 stages.)
What is Metamorphosis?
Metamorphosis is a big word that simply means: "A big change to their body form that some animals and insects go through during their life cycles."

Slide 7 - Diapositive

Stage 4. Butterfly
  •  The chrysalis splits open and a wet, crumpled-looking butterfly comes out after 10-14 days. 
  • The wings dry out and get harder as their blood pumps through them and soon they fly away.
  •  They fly and drink plenty of nectar (sugary fluid found in flowers) from a tube on their head.
Monarch Butterflies will only lay their eggs on a milkweed plant. Their larvae can only eat milkweed.  
They fly  2,500-3,000 miles to migrate to Mexico! This is to avoid the cold winter weather. 

Slide 8 - Diapositive

Life Cycles Surprise!
  • A life cycle is the stages of life from the beginning to the end of life. 
  • All living things have a life cycle. This includes humans, plants, and animals.
  •  Not every life cycle has 4 stages. 
  • We are going to study butterfly life cycles in class by raising caterpillars, studying their life cycle changes  each day, and recording our observations through pictures. 

Slide 9 - Diapositive

Let's get some practice!

Slide 10 - Diapositive

How many stages are in a butterfly's life cycle?
A
3. Egg, Larva, Butterfly.
B
4. Egg, Caterpillar, Chrysalis, and Butterfly.
C
2. Caterpillar, Adult.
D
It's all one stage.

Slide 11 - Quiz

Egg
Caterpillar
Chrysilas
Butterfly

Slide 12 - Question de remorquage

Which stage of the life cycle does a caterpillar change into a chrysalis?

Slide 13 - Question ouverte

Learning Outcomes:
  •  Explain the stages of a butterfly's life cycle.
  • Give a simple explanation of metamorphosis.
  •  Know that every living thing has a life cycle. 

Slide 14 - Diapositive

Do you think you understand the life cycle of a butterfly?
😒🙁😐🙂😃

Slide 15 - Sondage