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

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

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

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