Natural Science 3. Unit 4 PHOTOCOPIABLE MATERIAL

REINFORCEMENT Sight

Name: Date: Class:

Label the different parts of the eye.

2 There are three protective parts missing in the picture above. Which ones are they and what is their purpose?

A.

B.

C.

3 Answer the following questions:

a) Which part of the eyeball can be different colours? What colour are your eyes?

b) How does light enter the eyeballs? Colour the correct answer.

c) Why do pupils shrink if there is a lot of light?

d) What is the purpose of the retina?

Iris

Iris

Lacrimal gland

Lacrimal gland

Retina Pupila

Pupil

Eyebrow

4uniT

Natural Science 3. Unit 4 PHOTOCOPIABLE MATERIAL

REINFORCEMENT Hearing

Name: Date: Curso: 4

Outer ear Inner ear Middle ear

1 Write the different parts of the ear as shown in the picture.

2 In which part of the ear is the cochlea located? Circle the correct answer.

3 How do ears help us in our daily life? Write an example.

1

2

3

4

5

1

2

3

4

5

4uniT

Natural Science 3. Unit 4 PHOTOCOPIABLE MATERIAL

REINFORCEMENT Smell, taste and touch

Name: Date: Class:

1 Close your eyes. What sense would you use in each case?

2 Locate the area in the tongue where we perceive each type of flavour in the picture below:

3 Name the following parts in the picture. Which part of the sense of smell do we use to distinguish smells?

• Bitter: 1

• Acid: 2

• Salty: 3

• Sweet: 4

4uniT