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The Life Cycle of Plants
Name:
Class:
Consolidation Worksheet
Date:
1
Why Do Plants Reproduce? / What Happens
in the Life Cycle of a Flowering Plant?
1.
Label the different parts of the flower as shown below.
1. Pollen
2. Stigma
3. Anchor
5. Style
4. Filament
6.
7. Ovary
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8. Petal
Science SMART Teacher’s Guide Grade 5
77
2. The statements below describe various stages in the development of a
flowering plant.
A
B
C
D
E
F
G
H
Fertilisation takes place in the flower.
The ovary develops into a fruit.
A seed germinates when it receives air, warmth and water.
The adult plant bears flowers.
A flower is pollinated by wind or animals.
The ovules develop into seeds.
The seedling grows into an adult plant.
The petals of the flower fall off.
Complete the sequence of the stages above by writing the letters in the boxes
provided. The first letter has been written for you.
C
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Additional Teacher’s Resources
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The Life Cycle of Plants
Name:
Class:
Consolidation Worksheet
Date:
2
What Is Seed Dispersal?
Complete the table below by filling in the blanks with suitable words.
Method of seed
dispersal
Characteristics of fruits/seeds
• Seeds are
1.
and light.
Hair
By wind
• Seeds may have
-like structures or
3. Parachute
to help them stay afloat in the air longer.
By water
• Fruits have
4.
• Fruits have
them 6.
5.
outer covering.
.
husks that trap air to help
• Fruits have pods which become dry and crack
7.
. When ripe, the pod splits to throw the
.
seeds out with a 8.
By splitting
• Seeds may be found in fruits that are
and 10.
.
By animals
9.
• Seeds may have 11.
, 12.
or stiff
13.
that can attach themselves to the fur of
passing mammals.
Choose the word from the list given here:
water proof
unevenly
fibrous
force
fleshy
© 2012 Alston Publishing House Pte Ltd
edible
hairs
small
wing
spines
hooks
float
hairs
Science SMART Teacher’s Guide Grade 5
79
The Life Cycle of Plants
Name:
Class:
Fun and
Games
Date:
Crossword Puzzle!
Complete the crossword puzzle using the clues given below.
1
2
3
4
5
6
7
8
9
10
Across:
1. Fertilisation is the
of a male reproductive cell with a female reproductive
cell.
4. A typical seed is made up of an
, seed leaves and a seed coat.
6. The process in which a seed grows into a seedling is called
.
80
Additional Teacher’s Resources
© 2012 Alston Publishing House Pte Ltd
8. The carpel consists of the
, style, ovary and ovule.
9. Seeds dispersed by wind have wing-like structures or
that help them
stay afloat.
10. Seeds of fleshy fruits that are too large to be swallowed may be
by the
animals that eat the fruits, away from their parents.
Down:
2. The filament, anther and pollen grains make up the
of the flower.
is the transfer of pollen grains from the anther of a flower to the stigma
3.
of a flower of the same species.
5. Most fruits dispersed by
have fibrous husks which can trap air to enable
them to stay afloat.
7. Fruits and seeds must be
so the seedlings will not compete with the
parent plant and one another for sunlight, water, nutrients and space.
Answer the following questions:
a. What is modification of a plant? Which all parts of a plant are modified and why? (2 marks)
© 2012 Alston Publishing House Pte Ltd
Science SMART Teacher’s Guide Grade 5
81
The Life Cycle of Plants
Name:
Class:
Date:
Exam Practice
Process skills: Observing, Analysing
Plants X and Y grow next to each other. A butterfly visited a flower in Plant X and
then a flower in Plant Y as shown below, before flying off.
Plant X
Plant Y
a. Fill in the blanks below.
i. The butterfly was most likely to transfer pollen grains from the flower in
Plant to the flower in Plant .
[1 mark]
ii. This type of pollination is known as
b. Name two characteristics of plants that help in
pollination by insects such as butterflies.
[2 marks]
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Additional Teacher’s Resources
.
[1 mark]
Hint:
How do plants attract the
insects?
© 2012 Alston Publishing House Pte Ltd