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Mammals

Mammals. Chapter 18 Section 4 6 th Grade. Review Now…. Check and review worksheet on Birds. Finish Metamorphosis Lab questions. Objectives. Students will Identify the characteristics common to all mammals Explain how mammals are adapted to different environments on earth

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Mammals

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  1. Mammals Chapter 18 Section 4 6th Grade

  2. Review Now… • 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

  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

  5. Different Types of Teeth (pg. 546)

  6. Mammal Types Monotremes Examples: • Duck-billed platypus • Spiny anteater Characteristics • 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 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 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 • Different types of teeth • Bill Nye: Animal Locomotion

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

  11. Mammals (Part 2) 6th 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

  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

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

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