Flowers and seeds
Grade 7: parts of a flower (petal, stamen, carpel), pollination by insects and wind, fertilisation, seed dispersal.
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Questions
Which part of a flower is often brightly coloured to attract insects?
- Anther
- Petal
- Root
- Stem
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PetalWhich part of a flower makes pollen?
- Carpel
- Petal
- Sepal
- Stamen
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StamenWhich part of a flower contains the ovules?
- Anther
- Filament
- Ovary
- Petal
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OvaryThe stamen is the female part of a flower. (True or false?)
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FalseWhat are the two main parts of a stamen? (Answer out loud)
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Anther and filamentWhat is pollination?
- Growth of a root
- Making food in leaves
- Release of seeds from a fruit
- Transfer of pollen to a stigma
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Transfer of pollen to a stigmaWhich feature is typical of a wind-pollinated flower?
- Large bright petals
- Small dull petals
- Strong scent
- Sweet nectar
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Small dull petalsWind-pollinated flowers usually make a lot of pollen. (True or false?)
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TrueWhy do insects visit flowers such as foxgloves?
- To drink nectar
- To drink water from roots
- To eat the stem
- To lay seeds
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To drink nectarIn fertilisation, a male cell from pollen joins with which cell?
- Egg cell
- Leaf cell
- Petal cell
- Root cell
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Egg cellAfter fertilisation, what does the ovule become? (Answer out loud)
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A seedWhy do plants spread their seeds away from the parent plant?
- To keep the seeds warm
- To make the seeds heavier
- To reduce competition for light and water
- To stop pollination
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To reduce competition for light and waterSycamore seeds have wings. How are they dispersed?
- By animals eating them
- By explosion
- By water
- By wind
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By windBurdock seeds have tiny hooks. How are they dispersed?
- By bursting pods
- By floating on water
- By wind gliding
- Stuck to animal fur
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Stuck to animal furCoconuts can be dispersed by floating on water. (True or false?)
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TrueName the seed dispersal method used when a pod dries and suddenly bursts open. (Answer out loud)
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Explosion (explosive dispersal)
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