Page 24 - 新思维科学学生用书5 样章

1.3 How seeds are spread

1.3 How seeds are spread

We are going to:

• say how seed dispersal is part of a flowering plant’s life cycle

• identify methods of seed dispersal and say how plants are

adapted for seed dispersal
• sort seeds into groups according to the way they are dispersed

• observe and make drawings of seeds

• complete a key to identify methods of seed dispersal

Getting started

1 In a group, brainstorm what you know about fruits and seeds.

2 Write your ideas in a mind map.
3 Explain your mind map to another group.

Fruits and seeds

Have you ever swallowed a seed when you were eating an apple or explode

an orange? A fruit is the part of a flowering plant that contains the seed dispersal

seeds. Fruits and seeds can be different sizes and shapes. seedlings
spongy
Fruits usually have a skin on the outside, seeds inside

and flesh around the seeds.

A fruit has two jobs:
• to protect the seeds inside

• to help spread the seeds.

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