Page 30 - 新思维科学学生用书5 样章

1.3 How seeds are spread

Continued

Work with a partner to write questions to make a key to identify the way each seed is

dispersed.
• Make a rough version of your key in pencil. Ask another pair of learners

to use the key to see if it works. Make changes if the key doesn’t work.

• This could be your first question: Is the seed almost round?
• The last line in your key should be the method of seed dispersal, for example,

wind dispersal.

How are we doing?

Answer these questions:
• Did we think of suitable questions to ask about the seeds?

• Did our key help us to identify the methods of seed dispersal?

• Could other people use our key to identify the methods of seed dispersal?

Look what I can do!

I can say how seed dispersal is part of a flowering plant’s life cycle.

I can identify methods of seed dispersal and say how flowering plants are adapted

for seed dispersal.
I can sort seeds into groups according to the way they are dispersed.

I can observe and make drawings of seeds.

I can complete a key to identify methods of seed dispersal.

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