4. -Our sense organs help us to know what is happening around us.
They send the information to the brain through the nerves.
-The brain, the spinal cord and the nerves make up the
nervous system.
5. SIGHT
Our eyes are the organs of sight. This is an eye.
Light enters the pupil and goes to the retina. Nerves send the
information to the brain.
6. HEARING
Ears are the organs of hearing. This is an ear. Sound goes to the
middle ear. The eardrum vibrates. The sound goes to the three small
bones and to the cochlea that sends signals to the brain.
7. SMELL
Nose is the organ of smell. The air enters the nose through the
nostrils and to the olfactory nerve. It sends the information to the
brain.
8. TASTE
• Tongue is the organ of taste. Taste buds help us identify
sweet, salty, bitter and sour tastes.
Taste buds
9. TOUCH
Skin is the organ of touch. It tells us if something is
soft, hard, hot, cold, rough or smooth.
10. QUIZ
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1. What are the five senses?
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2. Complete the sentences:
a) The ________, the spinal cord and the nerves make up the nervous system.
b) Our ______ _______ send the information to the brain through the nerves.
c) Eyes are the organs of ___________.
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3. Which of the words in the box belong to these senses?
SIGHT ________________________________
HEARING _____________________________
TASTE ________________________________
SMELL _______________________________
nostrils
skin
taste buds eardrum pupil
TOUCH ______________________________
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tongue
4. Which of senses do you use when you…
a)
Eat a cake ________________
b)
Listen to the radio ___________
c)
Feel an object with your eyes closed _____________
d)
Wear a perfume ____________
e)
Watch a film _________________
retina cochlea
olfactory nerve
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Answers
1. Sight, hearing, taste, touch, smell.
2.a) brain
b) sense organs
c) sight.
3. SIGHT: pupil, retina
HEARING: eardrum, cochlea
SMELL: nostrils, olfactory nerve
TOUCH: skin
TASTE: tongue, taste buds.
4. a) taste
b) hearing
c) touch
d)smell
e) sight
