Page 20 - 新思维科学学生用书5 样章

1.2 Pollination, fruits and seeds

Pollination by wind

In wind pollination, the pollen blows in the wind from the

anthers to the stigmas of other flowers. Grass, rice and

corn flowers are wind pollinated.
Flowers pollinated by wind have these adaptations:

• The petals are small and not brightly coloured.

• They do not have a scent or nectar.
• They make lots of smooth, light pollen grains that blow away easily.

Activity

Design a flower

• Work with a partner to design and draw a flower that will attract insect pollinators.
• Explain your drawing to another pair of learners.

Think like a scientist 1

Which type of pollination?

You will need:
a hand lens, paper, pencils

• Look at different flowers in

the school grounds, the local
community parks or in pictures.

• Draw pictures of the flowers and label their parts.
• Decide how each flower is pollinated. Sort the flowers into groups according

to how they are pollinated.

• Describe how each flower is adapted to the type of pollination you identified.
• Which type of scientific enquiry did you use in the investigation? Say how you

used it.

19