Pollination & Seed Dispersal · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Pollination & Seed Dispersal

Science · Organisms & Life Processes · ages 7-8
Name ______________________   Date ____________

  1. What happens during fertilisation in a flower?

    • Pollen lands on a stigma
    • A male cell joins an egg cell
    • A seed travels away on an animal's fur

  2. What is pollination?

    • Pollen moves from an anther to a stigma
    • A seed takes in water and grows a root
    • A stem carries water from roots to leaves

  3. Wind can carry pollen from one flower to another.

    Circle one:   True   False

  4. How can hooks on a burr holding seeds help those seeds reach a new place?

    • They trap air so the burr can float along on water.
    • They spread out like wings, letting wind carry the burr.
    • They catch on fur, so an animal can carry the burr.

  5. A seed travels inside a light fruit with fluffy hairs. How can those hairs help wind move it away from its parent plant?

    • The hairs flap by themselves and pull the fruit through the air.
    • Moving air catches the hairs and carries the fruit.
    • The hairs catch pollen, which carries the fruit to another flower.

  6. Which order matches the lesson's seed-making and dispersal sequence?

    • Seed dispersal, pollination, seed formation, fertilisation
    • Pollination, fertilisation, seed formation, seed dispersal
    • Fertilisation, seed dispersal, pollination, seed formation

  7. Mia sees a bee carry pollen to a flower and calls it seed dispersal. Which clue shows that the event is pollination?

    • Pollen lands on a stigma
    • Seeds float on water
    • A burr travels on an animal's fur

  8. A coconut floats with a seed inside. Leo says the seed must come out before water can carry it. Which explanation checks his idea?

    • The seed must leave because only bare seeds float.
    • A seed cannot travel in water until it has grown roots and leaves.
    • Water carries the floating coconut with its seed still inside.
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Pollination & Seed Dispersal W1-mt_WNBHZ1d94L-s1

  1. A male cell joins an egg cell · Fertilisation is the joining of a male cell from pollen with an egg cell inside an ovule.
  2. Pollen moves from an anther to a stigma · Pollination moves pollen from an anther to a stigma. It can happen within one flower or between flowers.
  3. True · Wind carries pollen for some flowering plants.
  4. They catch on fur, so an animal can carry the burr. · Hooks catch on animal fur. As the animal moves, it carries the burr and its seeds. The burr may later fall off elsewhere.
  5. Moving air catches the hairs and carries the fruit. · Moving air catches the fluffy hairs and carries the light fruit with its seed inside. The hairs do not flap by themselves.
  6. Pollination, fertilisation, seed formation, seed dispersal · The shown order is pollination, fertilisation, seed formation, then seed dispersal.
  7. Pollen lands on a stigma · The bee moves pollen to a stigma. Seed dispersal moves seeds, including seeds carried inside fruits or burrs.
  8. Water carries the floating coconut with its seed still inside. · Water can carry a floating fruit with a seed inside. The coconut's seed does not need to leave the fruit before being dispersed.
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