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210
The Fairy-Land of Science
·
Arabella B. Buckley
16
Now
the
metal
potassium
is
devotedly
fond
of
oxygen,
and
the
moment
I
threw
it
on
the
water
it
called
the
fairy
"chemical
attraction'
to
help
it,
and
dragged
the
atoms
of
oxygen
out
of
the
water
and
joined
them
to
itself.
In
doing
this
it
also
caught
part
of
the
hydrogen,
but
only
half,
and
so
the
rest
was
left
out
in
the
cold.
No,
not
in
the
cold!
for
the
potassium
and
oxygen
made
such
a
great
heat
in
clashing
together
that
the
rest
of
the
hydrogen
became
very
hot
indeed,
and
sprang
into
the
air
to
find
some
other
companion
to
make
up
for
what
it
had
lost.
Here
it
found
some
free
oxygen
floating
about,
and
it
seized
upon
it
so
violently,
that
they
made
a
burning
flame,
while
the
potassium
with
its
newly
found
oxygen
and
hydrogen
sank
down
quietly
into
the
water
as
potash.
And
so
you
see
we
have
got
quite
a
new
substance
potash
in
the
basin;
made
with
a
great
deal
of
fuss
by
chemical
attraction
drawing
different
atoms
together.
When
you
can
really
picture
this
power
to
yourself
it
will
help
you
very
much
to
understand
what
you
read
and
observe
about
nature.
Next,
as
plants
grow
around
you
on
every
side,
and
are
of
so
much
importance
in
the
world,
you
must
also
learn
something
of
the
names
of
the
different
parts
of
a
flower,
so
that
you
may
understand
those
books
which
explain
how
a
plant
grows
and
lives
and
forms
its
seeds.
You
must
also
know
the
common
names
of
the
parts
of
an
animal,
and
of
your
own
body,
so
that
you
may
be
interested
in
understanding
the
use
of
the
different
organs;
how
you
breathe,
and
how
your
blood
flows;
how
one
animal
walks,
another
flies,
and
another
swims.
Then
you
must
learn
something
of
the
various
parts
of
the
world,
so
that
you
may
know
what
is
meant
by
a
river,
a
plain,
a
valley,
or
a
delta.
All
these
things
are
not
difficult,
you
can
learn
them
pleasantly
from
simple
books
on
physics,
chemistry,
botany,
physiology,
and
physical
geography;
and
when
you
understand
a
few
plain
scientific
terms,
then
all
by
yourself,
if
you
will
open
your
eyes
and
ears,
you
may
wander
happily
in
the
fairy-land
of
science.
Then
wherever
you
go
you
will
find
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