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Natural Science: Test
1
Grade 5
Flowers
Question 1:
1.
Answer the following questions in full.
Which part of the flower is responsible for making pollen? Give both names.
(2)
________________________________________________________________________
2.
Where is the pollen made and stored?
(2)
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
3.
In what part of the flower will you find the Ovaries? Give both names.
(2)
________________________________________________________________________
4.
Explain in detail where the egg cells of the flower can be found.
(3)
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
6.
Why are the petals and leaves of a flower important?
(2)
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Question 2:
Match the words in column A to the correct description in column C.
Write only the corresponding letter in column B.
A
B
C
Pollen
1. Process of sprouting
Ovaries
2. Process of fertilisation
Coconut
3. Fruit of a plant
Filament
4. Receives pollen
Stigma
5. Pistil and Stamen
Germination
6. Becomes the fruit of the new plant
Gametes
7. Carries the anther
Ovules
8. Produces Pollen
Anthers
9. Seed of the plant
Tomato
10. Carries sperm cells
11.Have embryo inside
1
(10)
Natural Science: Test
2
Grade 5
Flowers
Question 3:
Label the flower and discuss the function of each part.
½ each (9)
A
A1
A2
B
B1
B2
B3
C
D
E
Part
Function
Part
A
B2
A1
C
A2
D
B
E
Function
B1
Draw a detailed picture of the location of pollen in the flower:
2
(4)
Natural Science: Test
3
Grade 5
Flowers
Question 4:
Arrange the following pictures in order to illustrate the process of
pollination by writing the letters in the correct order.
C
A
(4)
D
B
1___________
1.
2_____________
3____________
4__________
Explain pollination in detail by referring to the processes that take place from number 1
to 4 as sequenced above:
1-
(4)
____________________________________________________________
____________________________________________________________
2-
____________________________________________________________
____________________________________________________________
3-
____________________________________________________________
____________________________________________________________
4-
____________________________________________________________
____________________________________________________________
Question 3:
Complete this paragraph by filling in the missing words:
pollen
sprouting
fertilisers
reproductive organs
germination
fertilisation
pollination
ovaries
pollinators
stamen
egg cells
(8)
ovules
pistil
The process where the ______________ inside the Ovules gets into contact with the sperm
cells inside the __________________, is called _______________. The sperm cells are the
_________________________ of the _________________. After
___________________, the female cells will grow into the new plants. The __________ will
form the seeds of the new plants and the ____________ will form the fruit of the new plant.
Birds and insects are called _______________.
Total:
/50
3
Natural Science: Test
Flowers -
4
Question 1:
Grade 5
Answer the following questions in full.
1.
Which part of the flower is responsible for making pollen? Give both names.
(2)
Male part, also known as Stamen.
2.
Where is the pollen made and stored?
(2)
Pollen is made inside the anther part of the Stamen. Pollen sacks are found inside the
Anther and pollen grains inside the pollen sacs. The pollen grains hold two sperm cells each
inside.
3.
In what part of the flower will you find the Ovaries? Give both names.
(2)
Female part, also known as Pistil.
4.
Explain in detail where the egg cells of the flower can be found.
(3)
Inside the Ovaries are the Ovules and the eggs cells or Ovum are found inside the Ovules.
The Ovaries are at the bulbous/bulging end of the Pistil.
6.
Why are the petals and leaves of a flower important?
(2)
Petals and leaves protect the reproductive parts of the flower. Flowers attract
insects to the plant and insects are an integral part of the process of pollination. The
leaves are also responsible for making food for the plant, through the process of photosynthesis.
Question 2: Match the words in column A to the correct description in column C.
Write only the corresponding letter in column B.
(10)
A
B
C
Pollen
10
1. Process of sprouting
Ovaries
6
2. Process of fertilisation
Coconut
9
3. Fruit of a plant
Filament
7
4. Receives pollen
Stigma
4
5. Pistil and Stamen
Germination
1
6. Becomes the fruit of the new plant
Gametes
5
7. Carries the anther
Ovules
11
8. Produces Pollen
Anthers
8
9. Seed of a plant
Tomato
3
10. Carries sperm cells
11.Have embryo inside
4
Natural Science: Test
Question 3:
5
Grade 5
Label the flower and discuss the function of each part.
½ each (9)
Part
Function
Part
Function
A Stamen
Male reproductive part of
plant
B2 Style
Holds stigma high for birds/
insects to reach and provides a
pipeline for pollen to ovaries
A1 Anther
Makes pollen and carries
sperm cells
C Petals
Attracts birds/insects to flower,
protects reproductive organs
A2 Filament
Keeps anthers upright and
tall for insects/birds to reach
D Leaves
Protects reproductive organs and
makes food for plant—
photosynthesis
B Pistil
Female reproductive part of
plant
E Stalk
Carries water and minerals from
soil that have been absorbed by
root, to the plant.
B1 Stigma
Receives the pollen carried
by insects or birds
Draw a detailed picture of the location of pollen in the flower:
(4)
Anther
Pollen grains
Sperm cells
Pollen sac
Question 4:
1D
1.
2A
3C
4B
Explain pollination in detail by referring to the processes that take place from number 1 to
4 as sequenced above:
(4)
1— Birds or insects are attracted to flower and drink nectar. The pollen then sticks to their feet.
2— Birds or insects fly away with pollen still sticking to them, finding the next flower for nectar.
3— Birds or insects reach the next flower. The pollen sticks to stigma of the pistil.
4— The pollen is then transported down tubes in the style to the egg cells (ovum) inside the ovaries. This
is where fertilisation takes place.
Total:
/50
5