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Science
is
FUN!
Chapter 5
Adaptations
Adaptations
A feature that allows plants and
animals species to adjust to their
habitat (home)
How does the Earth help with
Adaptation?
 When the earth spins on its axis it brings each place on
the surface towards the sun then away from it.
 When the earth is facing the sun at any time it is in
daylight.
 When the earth turns and faces away from the sun it
becomes night.
 During the time that the earth changes from day to night
some plants and animals are able to adapt.
Plant Adaptations to Daily Changes
 Daylight
 Plants such as crocus and tulip open their flowers.
 Insects visit the open flowers for nectar and help transport pollen from one flower
to another bringing about pollination
 Nectar is a sugar-rich liquid produced by plants.
 Pollination is what allows plants to make seeds and reproduce (have babies!)
 Night
 Flowers close to protect the delicate structures inside the petal from low
temperatures and dew.
 The dew could wash the pollen off so that it cannot be transported by the insects.
However not all plants react this way ----
Plants Adaptations to Daily Changes
The Night-scented stock
 Day
 The flowers closes
 Night
 The flowers open which allows moths to visit and pollinate.
Plant adaptation to daily changes
 A few plants make movements of their leaves over a 24-hour period.
 Leaves make food and provide a large surface area for the evaporation of water
which is turn helps to draw water through the plants from the roots.
Wood sorrel – each leaf is divided into three leaflets.
 Day
 Leaflets spread out and become horizontal
 Receive sunlight to make food and draw up water from the roots
 Night
 The leaflets fold close together which helps them lose less water when the plant is
not making food
Animal Adaption to Daily Changes
 Animals are adapted to being active certain times of the day and resting at
other times.
 Most birds roost (sleep) at night but in the day start flying in search of food
 Have large eyes with excellent vision which helps them fly, land and search for
food
 Tawny Owl has several adaptation that allow it to catch mice at night.
 Large eyes that are sensitive to low intensity of light in the countryside at night
 The edge of some of the owl’s wing feathers are shaped to move noiselessly
through the air when the bird beats its wings
 Sharp talons on its toes act as daggers to kill its prey quickly and to help carry the
prey away to be eaten.
Animal Adaption to daily changes
 Bats
 Roost in the day come out at dusk to feed
 Unlike other birds bats don’t use their eyes to search for food
 They send out very high pitched squeaks that we cannot hear
 The sound reflect off all the surfaces around the bat and travel back to the
bats ears.
 They use this info from these sounds to work out the distance, size and shape
of objects around it
 This all allows the bat to fly safely and detect insects in the air, which it can
swoop towards and eat.
Animal Adaptation to Daily Changes
 Butterflies, bees, and wasps- active fly during the day
 Moths- active at night to search for food
 Squirrel- active during day
 Deer- may be active in day but hide away in vegetation
 Field mice and voles- may be active in day but hide in the grass and low
vegetation
These animals are also active for periods at night, when
they are at risk of falling predators like the fox and the
owl

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Y7 chp 5

  • 2. Adaptations Adaptations A feature that allows plants and animals species to adjust to their habitat (home)
  • 3. How does the Earth help with Adaptation?  When the earth spins on its axis it brings each place on the surface towards the sun then away from it.  When the earth is facing the sun at any time it is in daylight.  When the earth turns and faces away from the sun it becomes night.  During the time that the earth changes from day to night some plants and animals are able to adapt.
  • 4. Plant Adaptations to Daily Changes  Daylight  Plants such as crocus and tulip open their flowers.  Insects visit the open flowers for nectar and help transport pollen from one flower to another bringing about pollination  Nectar is a sugar-rich liquid produced by plants.  Pollination is what allows plants to make seeds and reproduce (have babies!)  Night  Flowers close to protect the delicate structures inside the petal from low temperatures and dew.  The dew could wash the pollen off so that it cannot be transported by the insects. However not all plants react this way ----
  • 5. Plants Adaptations to Daily Changes The Night-scented stock  Day  The flowers closes  Night  The flowers open which allows moths to visit and pollinate.
  • 6. Plant adaptation to daily changes  A few plants make movements of their leaves over a 24-hour period.  Leaves make food and provide a large surface area for the evaporation of water which is turn helps to draw water through the plants from the roots. Wood sorrel – each leaf is divided into three leaflets.  Day  Leaflets spread out and become horizontal  Receive sunlight to make food and draw up water from the roots  Night  The leaflets fold close together which helps them lose less water when the plant is not making food
  • 7. Animal Adaption to Daily Changes  Animals are adapted to being active certain times of the day and resting at other times.  Most birds roost (sleep) at night but in the day start flying in search of food  Have large eyes with excellent vision which helps them fly, land and search for food  Tawny Owl has several adaptation that allow it to catch mice at night.  Large eyes that are sensitive to low intensity of light in the countryside at night  The edge of some of the owl’s wing feathers are shaped to move noiselessly through the air when the bird beats its wings  Sharp talons on its toes act as daggers to kill its prey quickly and to help carry the prey away to be eaten.
  • 8. Animal Adaption to daily changes  Bats  Roost in the day come out at dusk to feed  Unlike other birds bats don’t use their eyes to search for food  They send out very high pitched squeaks that we cannot hear  The sound reflect off all the surfaces around the bat and travel back to the bats ears.  They use this info from these sounds to work out the distance, size and shape of objects around it  This all allows the bat to fly safely and detect insects in the air, which it can swoop towards and eat.
  • 9. Animal Adaptation to Daily Changes  Butterflies, bees, and wasps- active fly during the day  Moths- active at night to search for food  Squirrel- active during day  Deer- may be active in day but hide away in vegetation  Field mice and voles- may be active in day but hide in the grass and low vegetation These animals are also active for periods at night, when they are at risk of falling predators like the fox and the owl