The 5 senses.There are 5 senses :sight, hearing, smell, taste and touch.
Sight• We use our eyes to see. They are our organs of sight.• We use them to see colours, size, shape, position, distance.• We use the cornea, pupil, iris, lens, retina, optic nerve to see.• The eyelids, eyelashes and eyebrows all protect our eyes.
Hearing.• We use our ears to hear. They are our organs of hearing.• Parts of the ear : outer ear, middle ear and inner ear. They very delicate.
How we hear soundSound vibrates. The vibrations reach the eardrum.The vibration moves the three small bones.The sound then goes to the cochlea.The sound goes to the auditory nerve to the brain.
Smell.• We use our nose to smell. It is our organ of smell.• Air enters our nose and go to the nostrils.• The smell enters to the nasal cavity and go to the olfatory nerve which sends the information to the brain.
Taste.• We use our tongue to taste. It is our organ of taste.• Flavours are: biscuits are sweet, crips are salty, lemons are sour and dark chocolate is bitter.
Touch.• We use our skin to feel.It is our organ of touch.• Through our skin we feel temperature, texture and pain.• By touching things we know if something is wet or dry, hot or cold, or hard or soft. Nerve endings sen the information to the brain.
Video• http://www.youtube.com/watch?v=_ 90VYWJ02b0 BY: SILVIA CASADO i