Reproduction in Flowering Plants A collection of slides to teach Key Stage 2 Science Unit 5B Life Cycles. Children will le...
The Parts of a Flower <ul><li>Most flowers have four parts: </li></ul><ul><li>sepals, </li></ul><ul><li>petals, </li></ul>...
The parts of a flower <ul><li>Sepals protect the bud until it opens. </li></ul><ul><li>Petals attract insects. </li></ul><...
Stamen (male) <ul><li>Anther: pollen grains grow in the anther. </li></ul><ul><li>When the grains are fully grown, the ant...
Pistil (female) <ul><li>Stigma </li></ul><ul><li>Style </li></ul><ul><li>Carpel (ovary) </li></ul><ul><li>Ovules (eggs) </...
Pollination <ul><li>Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stam...
Pollination <ul><li>A flower is pollinated when a pollen grain lands on its stigma. </li></ul><ul><li>Each carpel grows in...
Fertilisation <ul><li>Pollen grains germinate on the stigma, growing down the style to reach an ovule. </li></ul><ul><li>F...
Wind pollination <ul><li>Some flowers, such as grasses, do not have brightly coloured petals and nectar to attract insects...
Seed dispersal <ul><li>Seeds are dispersed in many different ways: </li></ul><ul><li>Wind </li></ul><ul><li>Explosion </li...
How birds and animals help seed dispersal <ul><li>Some seeds are hidden in the ground as a winter store. </li></ul><ul><li...
How birds and animals help seed dispersal <ul><li>Birds and animals eat the fruits and excrete the seeds away from the par...
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Floweringplants

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Floweringplants

  1. 1. Reproduction in Flowering Plants A collection of slides to teach Key Stage 2 Science Unit 5B Life Cycles. Children will learn to name and explain the functions of some parts of a flower; describe the processes of pollination, fertilisation, seed dispersal and germination. © Diane Hawkins Clipart from Printmaster Gold and graphics by kind permission from PC Advisor - 10,000 Clipart March 1999 Cover CD ROM
  2. 2. The Parts of a Flower <ul><li>Most flowers have four parts: </li></ul><ul><li>sepals, </li></ul><ul><li>petals, </li></ul><ul><li>stamens, </li></ul><ul><li>carpels. </li></ul>
  3. 3. The parts of a flower <ul><li>Sepals protect the bud until it opens. </li></ul><ul><li>Petals attract insects. </li></ul><ul><li>Stamens make pollen. </li></ul><ul><li>Carpels grow into fruits which contain the seeds. </li></ul>
  4. 4. Stamen (male) <ul><li>Anther: pollen grains grow in the anther. </li></ul><ul><li>When the grains are fully grown, the anther splits open. </li></ul>
  5. 5. Pistil (female) <ul><li>Stigma </li></ul><ul><li>Style </li></ul><ul><li>Carpel (ovary) </li></ul><ul><li>Ovules (eggs) </li></ul>
  6. 6. Pollination <ul><li>Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower. </li></ul>
  7. 7. Pollination <ul><li>A flower is pollinated when a pollen grain lands on its stigma. </li></ul><ul><li>Each carpel grows into a fruit which contains the seeds. </li></ul>
  8. 8. Fertilisation <ul><li>Pollen grains germinate on the stigma, growing down the style to reach an ovule. </li></ul><ul><li>Fertilised ovules develop into seeds. </li></ul><ul><li>The carpel enlarges to form the flesh of the fruit and to protect the ovary. </li></ul>
  9. 9. Wind pollination <ul><li>Some flowers, such as grasses, do not have brightly coloured petals and nectar to attract insects. </li></ul><ul><li>They do have stamens and carpels. </li></ul><ul><li>These flowers are pollinated by the wind. </li></ul>
  10. 10. Seed dispersal <ul><li>Seeds are dispersed in many different ways: </li></ul><ul><li>Wind </li></ul><ul><li>Explosion </li></ul><ul><li>Water </li></ul><ul><li>Animals </li></ul><ul><li>Birds </li></ul><ul><li>Scatter </li></ul>
  11. 11. How birds and animals help seed dispersal <ul><li>Some seeds are hidden in the ground as a winter store. </li></ul><ul><li>Some fruits have hooks on them and cling to fur or clothes. </li></ul>
  12. 12. How birds and animals help seed dispersal <ul><li>Birds and animals eat the fruits and excrete the seeds away from the parent plant. </li></ul>

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