Animals
Week 7
Directions
1. Prepare your desk for science.
• Put your signed summative assessment face down on your desk.
2. Use voice level 2 (conversation) to discuss this question:
• What happens during embryonic development? Share examples with your tablemates.

Targets & Warm Up
Targets:
Students will define complete and incomplete metamorphosis.
Students will compare and contrast complete and incomplete metamorphosis.
Warm Up: What is metamorphosis? Do all animals go through metamorphosis? Does it look the same in all animals?

Date
Table of Contents
Title
Metamorphosis
Page
16, 17
Once you are finished with the Table of Contents, go to page 16 & 17 and add the title and date to the top of the page.

Which of these young and adult pairs is not like the others?
1 2 3

Embryonic Development
Animals go through embryonic development, where they develop structures that they might need as an adult.
Do all animals develop all structures that they will need as an adult when they are in the embryo?

Question
What is it called when animals change form after they have come out of the embryo?

Metamorphosis
• The process that living things go through as they change form in different stages of their life cycles.

Question
“But… the baby chick looks different from the hen, so it must go through metamorphosis.”
Is this statement correct or incorrect?

BrainPop Video http://www.brainpop.com/science/ecologyandb ehavior/metamorphosis/

Complete vs. Incomplete
Metamorphosis

Complete Metamorphosis Incomplete Metamorphosis

Complete Metamorphosis
• 4 stages of growth
• Egg, larva, pupa, adult (for insects)
• Larva looks very different from the adult

Incomplete Metamorphosis
• 3 stages of growth
• Egg, nymph, adult
• Nymph looks like the adult without wings

Vocabulary
Nymph : a stage in an insect life cycle between egg and adult that looks like an adult but has no wings
Larva : a young animal that has a different shape than the adult
Pupa : the stage in the insect life cycle between larva and adult

Complete vs. Incomplete
Metamorphosis
[Video]

Venn Diagram
Larva Pupa Egg Adult Nymph
Complete Incomplete

Your Task
Determine whether the life cycle shows complete or incomplete metamorphosis.
Complete : The baby does not look like the adult.
Incomplete : the baby looks like the adult

Complete or Incomplete?
1. MOSQUITO

Complete or Incomplete?
2. TERMITE

Complete or Incomplete?
3. BEETLE

4. FLY
Complete or Incomplete?

Complete or Incomplete?
5. GRASSHOPPER

Complete or Incomplete?
6. HONEYBEE

Complete or Incomplete?
7. DRAGONFLY

Complete or Incomplete?
8. LADYBUG

9. FLEA
Complete or Incomplete?

Complete or Incomplete?
10. FROG
FROG

Complete vs. Incomplete
Metamorphosis worksheet

Questions
1. How can you tell if a life cycle includes metamorphosis?
2. What are the differences between the two types of metamorphosis?
3. What are the similarities between the two types of metamorphosis?

Targets (Revisited)
Targets:
Students will define complete and incomplete metamorphosis.
Students will compare and contrast complete and incomplete metamorphosis.

Homework
Subject Homework Due Date
Science Metamorphosis wksht Wednesday
10-15