Bc9b8 0ce28 Naturalscience03 Unit06 Test

Name:

6

UNIT

Class:

1 Complete the descriptions of invertebrates. Use two text boxes in each sentence. can walk, swim, crawl

largest group of

a backbone

or fly

animals on Earth

don’t have

and in water

on land

invertebrates ates don’t have... a. All invertebr

.

Invertebrates es are the b. Invertebrat

.

Invertebrates es live c. Invertebrat

.

invertebrates tes d. When they move, invertebra

.

2 Label the parts of the insect.

a.

antennae

d.

e.

b.

f.

c.

1

Legs

Natural Science Primary 3 • Downloadable and printable © Ediciones Bilingües, S.L.

UNIT

6

3 Complete the sentences about the different types of arthropods. myriapods exoskeleton

head four

crustaceans two segments eight antennae thick insects wings thorax claws arachnids

Myriapods of

 have an exoskeleton. Their body has lots and they also have lots of legs. They have

two

.

have an

. Their

body has three sections: head,

and

abdomen. They have

antennae and six legs.

Some have

and can fly.

have a exoskeleton. Most have eight legs and two

.

They have two eyes and

antennae.

 have an exoskeleton. Their body has two sections:

and abdomen. They have eight legs

and most have

eyes.

4 Read about molluscs. Tick the correct box or boxes. a. They have two shells.

gastropods

b. They have a soft body.



bivalves

cephalopods

gastropods

bivalves

cephalopods

c. They live on land and in water.

gastropods

bivalves

cephalopods

d. They live in water.

gastropods

bivalves

cephalopods

e. They have a large head with tentacles.

gastropods

bivalves

cephalopods

f. They have two eyes on the end of antennae.

gastropods

bivalves

cephalopods

2

Natural Science Primary 3 • Downloadable and printable © Ediciones Bilingües, S.L.

UNIT

6

5 Classify the invertebrates then illustrate. bee

oyster  jellyfish

octopus lobster

slug millipede

starfish scorpion

earthworm

Arthropods Insect

Arachnid

Myriapod

Crustacean

Molluscs Gastropod

Bivalve

Cephalopod

Other invertebrates Cnidarian

Annelid

Echinoderm

Earthworm

3

Natural Science Primary 3 • Downloadable and printable © Ediciones Bilingües, S.L.