Page 15 - 新思维科学学生用书5 样章

1 Life cycles of flowering plants

5 These are the stages in the life cycle of a bean plant:

flower seedling bean pod adult plant seed

The stages are in the wrong order. Put them in the right order and draw the life cycle of
the bean plant with labels.

6 Why do we make life cycle drawings in a circle?

Think like a scientist 1

Collect flowers

You will need:

different flowers

Make sure you wash your hands after touching the flowers.
• Collect a range of different flowers.

• Group the flowers according to their size, colour and scent. How many groups
can you make?

• Draw pictures of one of the flowers. Label any parts of the flower that you know.
• Try to name the flowers.

Stigma
Petals
The parts of a flower often brightly sticky to catch pollen Anther Stamen
makes a
coloured to powder the male
Flowers have four main parts. attract insects called pollen part
to the flower
These parts are arranged in Filament of the
flower
the stalk of
rings, one inside the other. the stamen

Ovary
contains tiny eggs

Carpel
Sepals the female part
little green leaves that of the flower
protect the flower bud

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