The fivesenses (elizabeth)
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Transcript of The fivesenses (elizabeth)
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The Five Senses!
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Our Five Senses
• Sight• Hearing• Touch• Taste• Smell
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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
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More on Sight…
• Eyelids, eyelashes, eyebrows, and lachrymal glands help to protect our eyes from too much light and particles in the air
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Draw 3 things you can see.
What did you draw??
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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
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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!!
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Find three things in the room you can hear.
What kinds of sounds do they make?
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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
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What are adjectives for how things feel when you touch
them?
Soft, squishy, hard, rough, wet, cold, hot…
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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
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Draw 2 things that taste good and 2 things that taste bad.
What do you think tastes good? Bad?
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Smell
• We smell with our nose– Nostrils: external
openings
– Nasal cavities: internal cavities
– Septum: separates the nostrils and naval cavity
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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!!
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What things smell good? What are things that smell bad?
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Challenge!
What are the 5 senses?
SIGHT, SMELL, TASTE, TOUCH, HEARING
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Challenge!
What do we call the colored part of the
eye?
THE IRIS
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Challenge!
What organ do we use to feel?
SKIN
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Challenge!
What two organs do we use to taste?
TONGUE AND NOSE
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Challenge!
What 4 qualities of taste can food have?
SALTY, SWEET, BITTER, SOUR
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Challenge!
What organ do we use to hear?
EARS
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Challenge!
What are taste buds?
LOCATED ON TONGUE, HELP DETECT FLAVOURS
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• http://www.metacafe.com/watch/an-1ujT22b7thYu4/harry_potter_and_the_chamber_of_secrets_2002_removing_harrys_bones/
Harry Potter Video