Page 9 - 新思维科学活动用书5 样章
P. 9

1   Life cycles of flowering plants



               1.2 Pollination, fruits and seeds




           Focus


           1  Use the words in the box to complete the sentences about pollination and fruit and

               seed formation. You will use some words more than once.



                          wind   insects   seeds   eggs   pollen   stigma

                                 anthers   nectar   ovary   fertilisation




               a  The                   of flowers make a yellow powder. This is called

                                    .

               b  Pollination happens when pollen moves from the                            to the

                                      of a flower of the same type.

               c  Some plants use                       to blow the pollen far away.

               d                     visit flowers to feed on                  . They get
                  on their bodies at the same time.


               e  The pollen and the                       join together. This happens inside the
                                      during                   . This is how                    form.


               f  The                     becomes the fruit.



           Practice

           Aliyah’s class investigated a scientific question. These are their results.


                                     Number of insects that
               Colour of flower
                                          visited flower
                   Red                          3

                   Yellow                      12

                   White                       10

                   Blue                         6






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