The Five Senses!

Our Five Senses

• Sight• Hearing• Touch• Taste• Smell

Sight• We see with our eyes

– Iris: largest part of the eye; colored

– Pupil: centre of the iris; black; light enters eye through pupil

– Lens: behind pupil; used to focus on objects

– Retina: nerve carries information we see to brain

More on Sight…

• Eyelids, eyelashes, eyebrows, and lachrymal glands help to protect our eyes from too much light and particles in the air

Draw 3 things you can see.

What did you draw??

Hearing!

• We hear with our ears– Ear flap & ear canal (external

ear): protected by small hairs and wax

– Eardrum, anvil, hammer, stirrup (middle ear): group of small bones

– Cochlea (inner ear): sense of balance is also located in the inner ear

How We Hear

• Sounds enter the external ear

• Sounds travel through ear canal to eardrum

• Eardrum vibrates, sound travels to inner ear, to a nerve, then to the brain

*Careful! Loud sounds can damage your ears!!

Find three things in the room you can hear.

What kinds of sounds do they make?

Touch

• We touch with our fingers

• Sense of touch is in the skin that covers our body—especially in our hands– Fingerprints are the

distinct lines on our fingertipsBraille: alphabet used by

blind people; touch letters with fingertips

What are adjectives for how things feel when you touch

them?

Soft, squishy, hard, rough, wet, cold, hot…

Taste

• We taste with our mouth– Tongue: organ we use

to detect different flavours

– Taste buds: small bumps on tongue that pick up flavors

Sweet, sour, bitter, salty

Draw 2 things that taste good and 2 things that taste bad.

What do you think tastes good? Bad?

Smell

• We smell with our nose– Nostrils: external

openings

– Nasal cavities: internal cavities

– Septum: separates the nostrils and naval cavity

More on Smell…

• Hairs and mucus membrane protect the nasal cavities by filtering the air that we breathe

• Pituitary gland: helps us to detect smell; covers nasal cavities

*Nose helps the tongue

to taste our food!!

What things smell good? What are things that smell bad?

Challenge!

What are the 5 senses?

SIGHT, SMELL, TASTE, TOUCH, HEARING

Challenge!

What do we call the colored part of the

eye?

THE IRIS

Challenge!

What organ do we use to feel?

SKIN

Challenge!

What two organs do we use to taste?

TONGUE AND NOSE

Challenge!

What 4 qualities of taste can food have?

SALTY, SWEET, BITTER, SOUR

Challenge!

What organ do we use to hear?

EARS

Challenge!

What are taste buds?

LOCATED ON TONGUE, HELP DETECT FLAVOURS

• http://www.metacafe.com/watch/an-1ujT22b7thYu4/harry_potter_and_the_chamber_of_secrets_2002_removing_harrys_bones/

Harry Potter Video