4th Grade Ch. 2 Lesson 3 How do Plants Reproduce?
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4th Grade Ch. 2 Lesson 3 How do Plants Reproduce?

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4th Grade Ch. 2 Lesson 3 How do Plants Reproduce? Presentation Transcript

  • 1. Ch. 2 Lesson 3 How do plants reproduce?
  • 2. 4 main parts of flowers petals sepals pistil stamen
  • 3. petals
    • colorful
    • attract bees, butterflies, etc.
  • 4. sepals
    • leaflike parts that cover & protect flower bud
    • found below petals
  • 5. pistil
    • female part of flower
    • makes egg cells
  • 6. sta men
    • male part of flower
    • produces pollen -male sex cells
  • 7. anther
    • at tips of stamens
    • make pollen
  • 8. pistil stamen anther pollen
  • 9. A single ragweed plant can release more than one million grains of pollen into the wind.
  • 10.  
  • 11.
    • movement of pollen from stamen  pistil
    pollination
  • 12.  
  • 13.  
  • 14. Pollination
  • 15. ovary
    • bottom of pistil where fertilization takes place
  • 16. fertilization
    • when sperm & egg cell combine
  • 17. after fertilization
    • petals & stamens dry up & fall off
    • fertilized egg  seed
    • ovary becomes fruit
    Video of ovary developing
  • 18. 1. 2. 3. 4.
  • 19. How plants reproduce
  • 20.  
  • 21.  
  • 22.