Science para niños

1. OUR SENSES AND NERVOUS
SYSTEM

2. STIMULY
● A stimulus is any
change that
takes place
around us that
our senses
notice.

3. THE FIVE SENSES
● The five main senses
are: touch, smell,
sight,hearing and
taste.These senses
allow us to interpret
what is happening
around us.

4. TOUCH
● We use our sense of
touch to interpret in
formation about
texture, temperature,
pain or pressure.
● Our skin covers and
protects our body. It
contains specialized
receptors that
respond to stimuli.

5. SIGHT
● Our sense of sight
lets us see the world
around us. We can
see objects and
identify their shape,
colour and size
essential in this
process.The sensory
organs that we use for
seeing things are our
eyes.

6. HEARING
● We hear the sounds
around us thanks to
our sense of hearing.
● Hearing occurs when
our ears detect and
process sound.
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7. TASTE
● The tongue is
responsible for our
sense of taste.
● The basic flavours
are : sweet, salty,
sour and bitter.

8. SMELL
● The nose, which we
use to interpret
smells, is responsible
for our sense of
smell.
● There are hundreds
of different types of
olfatory receptors,
each designes to
detect certain smells.

9. WHAT IS THE NERVOUS
SYSTEM?
● The nervous sytem transmits signals to
differents parts of our bodies to coordinate our
voluntary and involuntary actions.These action
respond to the stimuli from inside our bodies
(like feeling hungry or thirsty).
● The nervous system has two main parts: the
central nervous and the nerves.The nervous
system consists of specialised cells called
neurons.

10. VOLUNTARY AND INVOLUNTARY
ACTIONS
● The nervous system
is responsible for two
types of actions :
voluntary (those
actions that we
choose to do) and
involuntary actions
(those actions that our
bodies perform but
which we have no
control over).

11. THE END
BY:
Oscar Rui Xu
David Lagos Albarran
CEIP ALFARES
5th level