amphibians and reptiles chapter 18 section 2 6 th grade chapter 18 section 2 6 th grade

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Amphibians and Reptiles Chapter 18 Section 2 6 th Grade

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Page 1: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Amphibians and Reptiles

Chapter 18 Section 2

6th Grade

Page 2: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Do Now…

If fish were to live on land, what adaptations would they need to survive?

Page 3: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Do Now…

Complete another mealworm observation. Work on lab questions and draw a picture if possible.

Page 4: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Objectives

Students will…Describe how amphibians have adapted to live in water

and on landIdentify the adaptations that allow reptiles to live on land

Page 5: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Amphibians

Definition: animals that spend part of their lives in water and part on land

Origin of the word “amphibian”- from the Greek word amphibious which means “double life”

Examples: Frogs, Toads, Salamanders

Page 6: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Amphibian Adaptations (ectotherms)

HibernationCold climatesPeriod of inactivityBury themselves in

mud or leaves

Estivation Hot, dry climatesPeriod of inactivityBurrow underground

Page 7: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Amphibian Characteristics

Have endoskeletonsYoung have gills, adults have lungsHave 3 chambered heartsAdults exchange oxygen and carbon dioxide

through skinHave ear drums

Page 8: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Reptiles---Unique Characteristics pg. 538

TurtlesCrocodiles and

Alligators

Lizards Snakes

Reptiles

Page 9: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Reptile Adaptations pg. 539

Characteristic Purpose

Skin

Neck

Lungs

Internal Fertilization

Amniotic eggs

Page 10: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Videos

Reptiles and Amphibians part 1Reptiles and Amphibians part 2Reptiles and Amphibians part 3Reptiles and Amphibians part 4

Page 11: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

For Next Time…

Read pgs. 535-539

Page 12: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Frog Metamorphosis and Reptiles and Amphibian Review

Chapter 18 Section 2

6th Grade

Page 13: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Do Now…

What is the difference between hibernation and estivation?

Page 14: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Objectives

Students will

Create a foldable to learn model the metamorphosis of an amphibian

Page 15: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Amphibian Metamorphosis (Frogs)

Create a foldable according to teacher instructions1) Eggs- are laid by adult amphibian in the water2) Young Larva-are dependent on water. They have no legs

and breathe through gills.3)Older Larva- body structures are developed that are

necessary for life on land including legs and lungs. 4) Adult- have lungs, legs, breathe through skin and can

reproduce. They require water for external reproduction.

Page 16: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

Practice Worksheet

With your lab group—complete Reinforcement worksheet on Amphibians and Reptiles

Page 17: Amphibians and Reptiles Chapter 18 Section 2 6 th Grade Chapter 18 Section 2 6 th Grade

For Next Time…

Read pgs. 541-544Define contour feather and down

feather on index cards.