Page 49 - (DK) How to be a GENIUS?

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VHQVLQJ GLIIHUHQW W\SHV RI VHQVDWLRQVǟSUHVVXUH Sensitive touch
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how some parts of your
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than others.
You will need:
ǩ $ SDSHU FOLS
Step 1
S
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bend it so that the tips are around
part.
0.5 in (1 cm) ap
Your forearm is not as
m
sensitive as your fingers, so it
feels as if the points of the
Step 2 paper clip are together—or
&ORVH \RXU H\ H you might feel only one point.
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y
the paper clip from the tip of your index
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forearm. Coul d you feel both the points
of the paper c lip on your forearm?

whiskers. whiskers. wh ers er er er er er er r Hot or cold? You will need:
Follow the steps of

The finger that has been
their their ei this experiment and ǩ 7KUHH SODVWLF FXSV placed in cold water perceives
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see how your thermal
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use e use receptors detect 104–122 °F (40–50 °C). the water as warm, while the
finger placed in hot water
changes in
Ask an adult to check
example, example, ex temperature. the temperature with d t titing the water temperature.
perceives it as cool. This is
because the receptors are not
a thermometer.
t
ec
e
th
t
t
d
t
for for f f f f f f e e e e ǩ 6WRSZDWFK Instead, they are comparing it to
the previous temperatures.
Cats, Cats, ts ts t t t Step 1
feeling. feeling. feel e e e e Fill each of the cups w U t
with the
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ZDWHU
e
our left
of f f f f f of of of f of of of Place a finger from yo r and a
hand in the cold wate
d
ways ways ways ways ways ways ways y y y way way way w w finger from your right t hand in
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different different different different different different different differen eren eren ren en ren eren eren eren eren eren ffer ffer ffer ffer ffer ffer ffer ffe ffe ffe ffe ff ff f f f f f f d d d d d immersed in the wate r
er for
around a minute.
have have have have have have have have have have ve ve e ve v v v v v h h h s s s
animals animals animals animals animals animals animals animals anima anima m m m m m m m m m m m m m m n n n n St ep 2
Step 2
ome Some ome ome Some Some Some Some Some Some Some Some me ome m m m m m m m m m m 5HPRYH ERWK ȌQJHUV DQG GLS
them in the cup of warm water.
Does your body detect any
changes in temperature?
47
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