• Author / Uploaded
• Sergio Almagro Valverde

Citation preview

Name:

2

UNIT

Class:

1 P  ut these things in order from least complex (1) to most complex (5).

a. system

b. organ

c. cell

d. organism

e. tissue

2 Which systems are these body parts in?

a. lungs b. stomach c. veins d. small intestine e. muscles f. brain 3 Label the diagram with the words from the box.

retina   pupil   blind spot   cornea iris   optic nerve   lens

5.

1.

2. 6. 3.

4. 7. 4 Choose the correct word to complete the text. Sound waves enter our ear through the auditory canal / eardrum. The auditory canal / eardrum and the three / five bones in our outer / middle ear all vibrate. When these vibrations reach the semicircular canal / cochlea in our middle / inner ear, they turn into electric signals. These signals are sent to the brain by the olfactory / auditory nerve.

1

Natural Science Primary 5 • Downloadable and printable © Ediciones Bilingües, S.L.

2

UNIT

5 Correct these sentences by changing the underlined part.

a. The cerebrum protects the brain. b. Examples of voluntary movements are heart beat and digestion. c. Voluntary movements are controlled by the brain stem. d. Balance, movement and coordination are controlled by the cranium. e. The spinal cord controls talking and dancing. f. Motor neurons carry messages from the muscles to the brain. 6 Label the bones.

6. 1.

7.

8. humerus pelvis

9.

skull clavicle rib

2.

radius tibia

10.

femur fibula spine

3.

4.

5.

2

Natural Science Primary 5 • Downloadable and printable © Ediciones Bilingües, S.L.