21
Some invertebrates have an
exoskeleton
. This is hard like a skeleton but it’s outside the body. Some
invertebrates, such as cockroaches, have a thin exoskeleton. Some invertebrates, such as crabs, have
a thick exoskeleton.
Some invertebrates don’t have any protection. They have a
soft
body, for example, caterpillars and
worms.
2
Listen and repeat. Find the words on the pages.
vertebrate spine head trunk limbs invertebrate shell exoskeleton
3
T
h
i
n
k
!
Copy and complete the table. Then add two more animals to each column.
4
Copy the words and write
shell
,
exoskeleton
or
no protection
.
a)
caterpillar
b)
worm
d)
ant
e)
cockroach
c)
oyster
f)
snail
5
Draw and label your favourite invertebrate animal.
6
18
Q
U
Z
I
Check your learning.
A C T I V I T I E S
17
ant pig cockroach rabbit fish butterfly
frog caterpillar bird tiger mosquito
Vertebrates
Invertebrates
Caterpillars have
a soft body.
Crabs have a thick
exoskeleton.
Cockroaches have a thin
exoskeleton.
