149
High
in
the
highest
mountains,
it
is
so
cold
that
snow
doesn't
melt,
even
in
summer.
As
more
snow
falls,
it
packs
down
hard
into
hollows
and
the
snow
turns
to
ice.
When
a
hollow
is
full,
the
ice
slides
down
the
mountain
as
a
glacier.
Most
glaciers
move
very
slowly,
and
the
fastest
creep
less
than
a
metre
a
day.
Pieces
of
loose
rock
are
frozen
into
the
bottom
of
the
glacier,
and
as
it
edges
along
these
pieces
of
rock
scrape
at
the
ground
underneath.
Over
the
ages,
this
gritty
ice
grinds
the
land
away,
leaving
a
deep
valley.
A
valley
made
by
a
glacier
is
a
very
different
shape
to
one
made
by
a
river.
Valleys
created
by
fast-flowing
rivers
are
usually
in
the
shape
of
a
V.
A
valley
carved
out
of
the
rock
by
a
slow-moving
glacier
is
in
the
shape
of
a
U.
Drag the Tiles into position to put the segments of text into the correct order.
Unscramble the text by putting the words below into the correct order in the box above.

16
"mountains,",5
"melt,",13
"snow",19
"ice.",32
"hollow",35
"glacier.",46
"metre",59
"rock",65
"scrape",83
"grinds",94
"valley.",101
"shape",112
"fast-flowing",122
"V.",131
"slow-moving",141
"U.",149
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