Page 22 - 新思维科学学生用书4 样章

1.4 Different kinds of skeletons

1.4 Different kinds of skeletons

We are going to…

• learn about different kinds of skeletons

• find out the difference between vertebrates and invertebrates

• learn how to use an identification key
• use observations to group animals with and without an exoskeleton.

Getting started

1 Name some animals that have skeletons made of bone.
2 Your skeleton is inside your body. Do you think an animal can have

a skeleton on the outside of its body?

3 Do you think the animal in the picture has a skeleton? Say why or

why not.

exoskeleton

identification key

invertebrate

vertebrate

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