1. Mammals Chapter 18 Section 4 6 th Grade Chapter 18 Section 4 6 th Grade

2. Review Now…  Check and review worksheet on Birds.  Finish Metamorphosis Lab questions  Check and review worksheet on Birds.  Finish Metamorphosis Lab questions

3. Objectives Students will  Identify the characteristics common to all mammals  Explain how mammals are adapted to different environments on earth  Distinguish among monotremes, marsupials and placentals Students will  Identify the characteristics common to all mammals  Explain how mammals are adapted to different environments on earth  Distinguish among monotremes, marsupials and placentals

4. Characteristics of Mammals  1) Endothermic (warm blooded)  2) Mammary glands to produce milk  3) Hair  4) Specialized teeth  5) Well-developed Lungs  6) Complex nervous system  7) Internal fertilization  1) Endothermic (warm blooded)  2) Mammary glands to produce milk  3) Hair  4) Specialized teeth  5) Well-developed Lungs  6) Complex nervous system  7) Internal fertilization

5. Different Types of Teeth (pg. 546) Types of Teeth What they eat Examples Carnivore Omnivore Herbivore

6. Mammal Types Monotremes Examples:  Duck-billed platypus  Spiny anteater Monotremes Examples:  Duck-billed platypus  Spiny anteaterCharacteristics  Smallest group of mammals  Found only in Australia and New Guinea  Lay eggs with tough leathery shells  Mammary glands

7. Mammal Types Marsupial Examples:  Kangaroos  Koalas  Tasmanian Devils  Wallabies  Opossum Marsupial Examples:  Kangaroos  Koalas  Tasmanian Devils  Wallabies  Opossum Characteristics  Most carry young in pouch  Embryos develop only for a few weeks inside  Young born without hair, blind and not fully formed  Crawl into pouch after birth where they complete development

8. Mammal Types Placental Examples:  Humans  Mice  Rats  Horses  Elephants Placental Examples:  Humans  Mice  Rats  Horses  Elephants Characteristics  Largest number of mammals  Umbilical cord connects embryo to placenta  Food and oxygen exchanges via the umbilical cord  Gestation varies with types of placental (ex: human 40 weeks; elephant 2 years; cats 9 weeks)

9. Videos  World of Mammals World of Mammals  Different types of teeth Different types of teeth  Bill Nye: Animal Locomotion Bill Nye: Animal Locomotion  World of Mammals World of Mammals  Different types of teeth Different types of teeth  Bill Nye: Animal Locomotion Bill Nye: Animal Locomotion

10. For Next Time…  Read pgs. 545-549  Define herbivore, carnivore and omnivore on index cards  Read pgs. 545-549  Define herbivore, carnivore and omnivore on index cards

11. Mammals (Part 2) 6 th Grade Mini Lab 6 th Grade Mini Lab

12. Do Now…  How are herbivores, carnivores and omnivores different?

13. Objectives Students will…  Review characteristics of mammals  Complete Mini lab: infer how blubber insulates Students will…  Review characteristics of mammals  Complete Mini lab: infer how blubber insulates

14. Mini Lab: How Blubber Insulates  What is blubber? Why is it an important adaptation of mammals?  Lab procedures and instructions  Set up/Clean up  Complete Lab worksheet  What is blubber? Why is it an important adaptation of mammals?  Lab procedures and instructions  Set up/Clean up  Complete Lab worksheet

15. For Next Time…  Complete Self-Check Questions #1-3 and #5 on pg. 549 in science notebook  Bring in a flash drive  Complete Self-Check Questions #1-3 and #5 on pg. 549 in science notebook  Bring in a flash drive